Research Project
Electrical and Electronic Engineering
Research Projects
Administrative,
Business and
Social Studies
Medicine,
Dentistry
and Health:
Part 1
Part 2
Part 3
Civil and
Structural
Engineering
Electrical and
Electronic
Engineering
Computing
Sciences,
Information
Technology
and Applied
Mathematics
Mechanical,
Production and
Industrial
Engineering
including
Textiles and
Clothing
NEW HIGH PERFORMANCES SWITCHED RELUCTANCE MOTOR DRIVES FOR LIFTS
To develop an optimal design approach to high performance switched reluctance motors for lifts; to establish new control strategies for torque, speed and position control of SRM drives, adopting fuzzy logic and intelligent control.
Investigators: Professor C.C. Chan (Principal)
Dr. Q. Jiang
Department: Electrical and Electronic Engineering
Source of funding: Hong Kong Research Grants Council
Starting date: 1996.01
IMPACT OF ELECTRIC VEHICLES ON POWER SYSTEMS
To develop a computer model and analysis approach of electric vehicles for evaluating their impact on power systems.
Investigators: Professor C.C. Chan (Principal)
Professor T.S. Cheng
Professor Y.J. Guo
Departments: Electrical and Electronic Engineering
Electrical Engineering, Tsinghua University, People's Republic of China
Electrical Engineering, University of Southern California, U.S.A.
Source of funding: Hong Kong Research Grants Council
Starting date: 1997.01
NEW GENERATION ELECTRIC PROPULSION
To propose a new design philosophy and to develop a new drive system for new generation electric prpulsion in EVs.
Investigators: Professor C.C. Chan (Principal)
Dr. K.T. Chau
Mr. H. Shimizu
Departments: Electrical and Electronic Engineering
The National Institute for Environmental Studies, Japan
Source of funding: Hong Kong Research Grants Council
Starting date: 1997.12
THE STUDY OF THE IMPACT OF ELECTRIC VEHICLES ON POWER QUALITY IN HONG KONG
To study the impact of penetration of electric vehicles on the load factor, power fuetor, and harmonic of power system in Hong Kong.
Investigators: Professor C.C. Chan (Principal)
Mr. L. Cheng
Mr. L.W. Jiao
Dr. E.W.C. Lo
Department: Electrical and Electronic Engineering
Source of funding: Hong Kong Electric Co. Ltd.
Starting date: 1998.07 Completion date: 1998.12
BIOMEDICAL SIGNAL PROCESSING USING EXPERT SYSTEMS
To develop suitable expert systems for analysis and classification of biomedical signals.
Investigator: Professor F.H.Y. Chan
Department: Electrical and Electronic Engineering
Source of funding: Committee on Research and Conference Grants
Starting date: 1990.05
EYE MOVEMENT MEAUREMENT USING IMAGE PROCESSING TECHNIQUE
To replace and upgrade and existing eye movement measurement system based on image processing techniques.
Investigator: Professor F.H.Y. Chan
Department: Electrical and Electronic Engineering
Source of funding: Committee on Research and Conference Grants
Starting date: 1992.07
COMMUNICATION AIDS FOR DISABLED
To develop suitable communication aids for disabled person.
Investigator: Professor F.H.Y. Chan
Department: Electrical and Electronic Engineering
Source of funding: Committee on Research and Conference Grants
Starting date: 1993.07
CLASSIFICATION OF NEURAL SIGNALS BY ARTIFICIAL NEURAL NETWORKS
To use ANN to classify biomedical signals related to the nerve systems.
Investigator: Professor F.H.Y. Chan
Department: Electrical and Electronic Engineering
Source of funding: Committee on Research and Conference Grants
Starting date: 1994.07
DEVELOPING FAST EVOKED POTENTIAL MEASUREMENT METHODS AND THEIR CLINICAL APPLICATION IN INTRA-OPERATIVE SPINAL CORD MONITORING
To develop effective and efficient method to greatly improve the signal to noise ratio of evoked potential measured for very fast clinical evoked potential measurement; to apply our newly developed fast evoked potential measurement methods to study different evoked potentials from every stimulus, and the study of time variation of evoked potentials; application of fast evoked potential methods to clinical intra-operative spinal cord monitoring.
Investigators: Professor F.H.Y. Chan (Principal)
Dr. F.K. Lam
Professor K.D.K. Luk
Departments: Electrical and Electronic Engineering
Orthopaedic Surgery
Source of funding: Hong Kong Research Grants Council
Starting date: 1996.10
A SENSOR ARRAY APPROACH TO DYNAMIC MEASUREMENT OF EVOKED POTENTIALS
To develop novel data acquisition and signal processing techniques for dynamic measurement of evoked potential (EP).
Investigators: Professor F.H.Y. Chan (Principal)
Dr. P.C.K. Kwok
Dr. F.K. Lam
Dr. A.M.S. Poon
Dr. S.F. Yau
Departments: Electrical and Electronic Engineering
Physiology
Source of funding: Hong Kong Research Grants Council
Starting date: 1997.12
A CLINICAL VIRTUAL INSTRUMENT FOR MONITORING OF VENOUS AIR EMBOLISM
To develop a clinical virtual instrument for real-time automatic detection of VAE and quantification of embolic air volumes.
Investigators: Professor F.H.Y. Chan (Principal)
Dr. B.C.B. Chan
Dr. J.C.K. Kwok
Dr. F.K. Lam
Departments: Electrical and Electronic Engineering
Computer Science, City University of Hong Kong
Kwong Wah Hospital
Source of funding: RGC Fundable Projects (Block Grant Funded)
Starting date: 1998.11
DESIGN AND PROTOTYPING OF A DISCRETE COSINE TRANSFORM CHIP USING FPGA
To design and rapid prototyping a discrete cosine transform chip for video coding applications using field programmable gate arrays (FPGA).
Investigator: Dr. S.C. Chan
Department: Electrical and Electronic Engineering
Source of funding: Committee on Research and Conference Grants
Starting date: 1995.07
VIDEO COMPRESSION AND BANDWIDTH ALLOCATION TECHNIQUES FOR HIGH SPEED LOCAL AREA NETWORKS
To investigate software only video coding techniques and bandwidth allocation algorithms to support computer supported cooperative working on high speed local area network.
Investigator: Dr. S.C. Chan
Department: Electrical and Electronic Engineering
Source of funding: Committee on Research and Conference Grants
Starting date: 1996.07
WAVELET BASED HYBRID DS/SFH CDMA SYSTEMS
To conduct a detail performance analysis of this type of wavelet based hybrid DS/SFH system for realistic channel models such as the Rician and Rayleigh channels; to investigate the design and selection of wavelet bases functions (modulation) in such wavelet based hybrid system that matches the given channel characteristics.
Investigators: Dr. S.C. Chan (Principal)
Professor T.S. Ng
Dr. J.Z. Wang
Department: Electrical and Electronic Engineering
Source of funding: RGC Fundable Projects (Block Grant Funded)
Starting date: 1998.11
MODELLING AND CONTROL OF TRAVELLING-WAVE ULTRASONIC MOTORS
To address on these two key issues: the development of mathematical models of travelling-wave ultranonic motors; and the development of sophisticated control strategies for high-performance mechatronic applications.
Investigator: Dr. K.T. Chau
Department: Electrical and Electronic Engineering
Source of funding: Committee on Research and Conference Grants
Starting date: 1998.07
MOTION CONTROL OF ULTRASONIC MOTORS USING FUZZY NEURAL NETWORKS
In recent years, it has been attempted to apply various control techniques such as adaptive control, fuzzy logic and neural networks for motion control of USMs without relying on their models. However, these applications have suffered a number of problems such as instability, ambiguity and inflexibility. These problems are mainly due to two issues; the control strategies have been biased on only one control variable; the control techniques have been ad hoc for a particular task or USM. Therefore, the purpose of this investigation is to overcome these problems, and hence to develop sophisticated control strategies for high-performance motion control of USMs. Based on the use of fuzzy neural networks, the proposed control strategies should have no reliance on motor models, capability of handling system nonlinearities, and insensitivity to changes in system parameters.
Investigators: Dr. K.T. Chau (Principal)
Professor C.C. Chan
Department: Electrical and Electronic Engineering
Source of funding: RGC Fundable Projects (Block Grant Funded)
Starting date: 1998.11
AN INTEGRATED ASIC SYNTHESIS SYSTEM
To integrate synthesis system comprises tools spanning three levels. Most of the components in the proposed suite of tools are new. Such a system allows designers to analyse and implement algorithms in silicon, without having to worry about VLSI des details.
Investigator: Dr. P.Y.S. Cheung
Department: Electrical and Electronic Engineering
Source of funding: Croucher Foundation
Starting date: 1990.11 Completion date: 1999.06
PPSC - THE PARALLEL PIPELINE SUPER COMPUTER
To design and implement an experimental parallel pipelined mini-super computer for engineering applications.
Investigator: Dr. P.Y.S. Cheung
Department: Electrical and Electronic Engineering
Source of funding: Committee on Research and Conference Grants
Starting date: 1992.07
A SHARED AND DISTRIBUTED MEMORY SYSTEM - DRAGON
To design and implement a shared-and-distributed memory computer system with coherent secondary cache.
Investigator: Dr. P.Y.S. Cheung
Department: Electrical and Electronic Engineering
Source of funding: Committee on Research and Conference Grants
Starting date: 1993.07
DIGITAL IMAGING TECHNOLOGY FOR LOW-COST DIGITAL CAMERA
To develop the necessary technology in digital imaging to support a potential industry in low-cost digital camera in Hong Kong.
Investigators: Dr. P.Y.S. Cheung (Principal)
Dr. P.C.K. Kwok
Department: Electrical and Electronic Engineering
Source of funding: Industrial Support Fund, Industry Department of Hong Kong Government
Starting date: 1999.08
SPECTRALLY EFFICIENT MODULATION FOR DIGITAL CELLULAR MOBILE SYSTEMS
To investigate the means of improving the capacity of mobile systems using the (4,12) circular set signal.
Investigator: Dr. S.W. Cheung
Department: Electrical and Electronic Engineering
Source of funding: Committee on Research and Conference Grants
Starting date: 1994.07 Completion date: 1999.03
CHARACTERIZATION OF MULTIPATH RADIO CHANNELS FOR INDOOR COMMUNICATIONS
To investigate the propagation characteristics of multipath radio channels at 1.8 and 2.1 GHz bands for indoor radio communications.
Investigator: Dr. S.W. Cheung
Department: Electrical and Electronic Engineering
Source of funding: Committee on Research and Conference Grants
Starting date: 1998.07
OBJECT ORIENTED PROGRAMMING FOR CAD TOOLS FOR THE DESIGN OF OPTOELECTRONIC DEVICES AND SYSTEMS
To employ the Object Oriented Design (OOD) approach in the design of Computer Aided Design (CAD) software tools for use in the simulation and design of optoelectronics devices and systems; to develop highly reusable computer software through a vigorous application of OOD techniques so as to produce a very felexible CAD tool.
Investigators: Mr. P.C. Chui (Principal)
Professor C.C. Chan
Dr. S.F. Yu
Department: Electrical and Electronic Engineering
Source of funding: Committee on Research and Conference Grants
Starting date: 1998.07
SUBBAND CODING OF DIGITAL AUDIO SIGNALS
To investigate better subband filters, quantization schemes and psychoacoustic models to improve the performanace of current subband coder and allows them to operate at lower bit rate.
Investigators: Dr. K.L. Ho (Principal)
Dr. S.C. Chan
Department: Electrical and Electronic Engineering
Source of funding: Hong Kong Research Grants Council
Starting date: 1995.09
STUDIES ON ELECTROMAGNETIC RADIATION AND SCATTERING PROBLEMS
To adapt various numerical methods on the following studies: (1) performance analysis/design of antennas; (2) analysis of radiation effects of high frequency interconnections; (3) EM interaction of handset antenna and human body.
Investigator: Dr. K.L. Ho
Department: Electrical and Electronic Engineering
Source of funding: Committee on Research and Conference Grants
Starting date: 1996.07
WAVELET-BASED IMAGE CODING
To fully exploit the advantage of Finite State Vector Quantization (FSVQ) and Lattice VQ (LVQ) on image coding in the wavelet domain.
Investigator: Dr. K.L. Ho
Department: Electrical and Electronic Engineering
Source of funding: Committee on Research and Conference Grants
Starting date: 1997.07
SUBBAND CODING OF STILL IMAGES AND VIDEO
To provide a detail study into several important aspects of subband coding systems for still images and video.
Investigators: Dr. K.L. Ho (Principal)
Dr. S.C. Chan
Department: Electrical and Electronic Engineering
Source of funding: RGC Fundable Projects (Block Grant Funded)
Starting date: 1997.12 Completion date: 1998.09
PERCEPTUAL SUBBAND CODING OF STILL IMAGES AND VIDEO
To conduct a in-depth investigation on the development of an advanced visual model and its integration into some of the most promising subband coders.
Investigators: Dr. K.L. Ho (Principal)
Dr. S.C. Chan
Department: Electrical and Electronic Engineering
Source of funding: Hong Kong Research Grants Council
Starting date: 1998.09
MOBILE ROBOT NAVIGATION WITH FUZZY SENSORY INFORMATION
To develop a mobile robot which is capable of navigating itself in an unknow enivornment based on fuzzy sensory information and to recover a crisp map from multiple sources of imprecise range data using fuzzy set analysis.
Investigator: Dr. Y.S. Hung
Department: Electrical and Electronic Engineering
Source of funding: Committee on Research and Conference Grants
Starting date: 1994.07
A NETWORK-THEORY BASED APPROACH TO H-INFINITY CONTROL AND FILTERING
To develop a unified and simplified approach to H-infinity control and filtering based on chain scattering-matrix description and J-spectral factorization techniques from network theory.
Investigator: Dr. Y.S. Hung
Department: Electrical and Electronic Engineering
Source of funding: Committee on Research and Conference Grants
Starting date: 1997.07
AN H-INFINITY FILTER-BASED APPROACH FOR RECONSTRUCTING 3D ENVIRONMENT FROM IMAGE SEQUENCES
To develop an H-infinity filtering framework for depth estimation based on iconic methods; to apply the H-infinity filtering approach tomobile vehicle navigation in an indoor environment.
Investigators: Dr. Y.S. Hung (Principal)
Dr. N.H.C. Yung
Department: Electrical and Electronic Engineering
Source of funding: RGC Fundable Projects (Block Grant Funded)
Starting date: 1997.12 Completion date: 1998.09
AN H-INFINITY FILTERING FRAMEWORK FOR DEPTH ESTIMATION
To develop a general H-infinite filter-based framework for computer vision problems; to use the H-infinite filtering framework to develop a pixel-based method for depth estimation which incorporates local surfaces structure directly into the iconic filtering process.
Investigator: Dr. Y.S. Hung
Department: Electrical and Electronic Engineering
Source of funding: Hong Kong Research Grants Council
Starting date: 1998.12
CENTRE OF DISTRIBUTED COMPUTING AND MULTIMEDIA APPLICATIONS
In order to enhance Hong Kong's ability to compete with the rest of the world, we propose to establish a Center of Excellence at HKU for business, scientific industry, education, and government applications. The Center's major mission is to promote research and development of advanced computer and information technology in Hong Kong. Initial research tasks includes the development of a tightly coupled cluster of multiprocessor servers and workstation pools, a bilingual (Chinese and English) Internet search engine to enable fast access of the World-Wide Web (WWW) resources, and a parallel software environment for distributed computing and multimedia applications. We put the emphasis on the system integration of hardware and software for distributed, scalable, and parallel processing in Hong Kong. The proposed facilities and projects are targeted to benefit not only the banking, finance, airline, shipping, and service industries in Hong Kong; but also the growing high-tech and manufacturing industries in neighbouring regions of Hong Kong.
Investigators: Professor K. Hwang (Principal)
Professor C.C. Chan
Professor F.H.Y. Chan
Dr. K.T. Chau
Dr. R.M.M. Chen
Dr. D.W.L. Cheung
Dr. P.Y.S. Cheung
Mr. A.S. Fong
Dr. B.C.M. Kao
Dr. K.T. Ko
Dr. P.C.K. Kwok
Dr. E.C.M. Lam
Dr. F.C.M. Lau
Dr. X.L. Lin
Dr. J. Liu
Dr. S.P.H. Lui
Dr. D.C.W. Pao
Dr. Y.Y. Tang
Dr. C.L. Wang
Professor F.F. Wu
Dr. J.C.H. Yen
Dr. N.H.C. Yung
Departments: Electrical and Electronic Engineering
Computer Science and Information Systems
Computer Studies, The Hong Kong Baptist University
Electronic Engineering, City University of Hong Kong
Source of funding: Hong Kong Research Grants Council (Competitive Bid Projects)
Hong Kong University Matching Fund
Starting date: 1997.01
VISIBLE COLOR LIGHT EMITTING DIODES DISPLAY TECHNOLOGY
To optimize, through a global LEDs display system consideration, the intrinsic and external blue-green III-Nitride LED's with better quality and higher efficiency that are necessary to increase its commercial competitiveness. In particular, the external efficiency of LED is important for packaging into a display system. We will also consider the design of LED capping and driving circuits.
Investigators: Dr. P.C.K. Kwok (Principal)
Dr. E.H. Li
Department: Electrical and Electronic Engineering
Source of funding: Committee on Research and Conference Grants
Starting date: 1998.07 Completion date: 1999.08
SMART ANTENNA ARRAY IN MOBILE COMMUNICATION SYSTEMS
To apply adaptive techniques to antennas for enhancing the performance of mobile communication systems.
Investigators: Dr. P.C.K. Kwok (Principal)
Professor T.S. Ng
Department: Electrical and Electronic Engineering
Source of funding: RGC Fundable Projects (Block Grant Funded)
Starting date: 1998.11
A CLUSTER-COMPUTING APPROACH TO THE DYNAMIC CHANNEL ASSIGNMENT PROBLEM
To design and develop a parallel approach to the dynamic channel assignment problem in a cellular radio network.
Investigator: Dr. Y.K. Kwok
Department: Electrical and Electronic Engineering
Source of funding: Committee on Research and Conference Grants
Starting date: 1999.02
THIN DIELECTRICS FOR VLSI APPLICATIONS
To study the feasibility of new dielectric materials for the future-generation VLSI fabrication, with emphasis on the growth methods and electrical properties of nitrided gate insulators.
Investigators: Dr. P.T. Lai (Principal)
Professor Y.C. Cheng
Mr. S.H.B. Lo
Departments: Electrical and Electronic Engineering
Vice-Chancellor's Office
Source of funding: Committee on Research and Conference Grants
Hong Kong Research Grants Council
Starting date: 1996.01
GATE DIELECTRICS FOR SIC MISFET'S
To investigate preparation methods for one such material (silicon nitride) which has high potential in ushering the SiC devices into future electronic components and sytems.
Investigators: Dr. P.T. Lai (Principal)
Professor Y.C. Cheng
Professor D.L. Kwong
Departments: Electrical and Electronic Engineering
Electrical and Electronic Engineering, University of Texas, Austin, U.S.A.
Vice-Chancellor's Office
Source of funding: Hong Kong Research Grants Council
Starting date: 1998.01
LOW-DRIFT INTEGRATED FLOW SENSORS FOR HIGH-TEMPERATURE APPLICATIONS
To develop low-drift flow sensors, with consideration also on their operating temperature, sensitivity, reproducibility, costs, accuracy and stability. It is hoped that with better design and development of the flow sensors, they would find widespread applications, just like the integrated accelerometer in the air-bag systems of motor vehicles.
Investigator: Dr. P.T. Lai
Department: Electrical and Electronic Engineering
Source of funding: Hong Kong Research Grants Council
Starting date: 1998.07
ULTRASONIC FLAW CHARACTERIZATION USING WIDEBAND WAVELET TRANSFORM
To develop a computerized non-destructive testing system which reconstructs unknown flaw shapes based on wideband wavelet transform.
Investigator: Dr. F.K. Lam
Department: Electrical and Electronic Engineering
Source of funding: Committee on Research and Conference Grants
Starting date: 1997.07
PERSONAL COMMUNICATIONS NETWORKS
Third generation mobile (wireless) radio communications network.
Investigator: Dr. W.H. Lam
Department: Electrical and Electronic Engineering
Starting date: 1994.10
VARIABLE RATE ADAPTIVE CHANNEL CODING FOR WIRELESS COMMUNICATIONS
To come up with a practical and feasible system design for variable rate adaptive coding scheme for wireless applications.
Investigator: Dr. K.N Lau
Department: Electrical and Electronic Engineering
Source of funding: Committee on Research and Conference Grants
Starting date: 1999.02
THE DEVELOPMENT OF A LABORATORY-SCALE FOR PRECISION CONTROL OF INSTANT NOODLE FRYING
To make a pilot study using the prototype system in order for the technology to be transferred to industry and commercial production systems can be developed.
Investigators: Mr. S.H. Lau (Principal)
Dr. H. Corke
Mr. H.C. Kwan
Departments: Electronic Services Unit
Botany
Source of funding: Committee on Research and Conference Grants
Starting date: 1997.07
SIGNATURE VERIFICATION IN HONG KONG
To develop a prototype system on a Personal Computer platform for the automatic verification of signatures in the environment of Hong Kong.
Investigators: Dr. C.H. Leung (Principal)
Dr. P.C.K. Kwok
Dr. K.W. Tse
Mr. Y.K. Wong
Departments: Electrical and Electronic Engineering
Electrical Engineering, The Hong Kong Polytechnic University
Source of funding: Hong Kong Research Grants Council
Starting date: 1997.10
HIGH PERFORMANCE ACOUSTO-OPTIC DEVICES IN III-V SEMICONDUCTOR QUANTUM WELL STRUCTURES FOR SIGNAL PROCESSING APPLICATIONS IN COMMUNICATIONS
To exploit acousto-optic interactions in a thin-film layered quantum well structures for the development of improved performance and novel signal processing devices and circuits.
Investigators: Dr. E.H. Li (Principal)
Dr. B.L. Weiss
Dr. S.F. Yu
Departments: Electrical and Electronic Engineering
Electronic and Electrical Engineering, University of Surrey, U.K.
Source of funding: Hong Kong Research Grants Council
Starting date: 1995.09
ACOUSTO-OPTIC DEVICES IN III-V SEMICONDUCTOR QUANTUM WELL STRUCTURES
To exploit acousto-optic interactions in a thin-film (~100A) layered quantum well structures for the development of improved performance and novel signal processing devices and circuits.
Investigators: Dr. E.H. Li (Principal)
Dr. B.L. Weiss
Departments: Electrical and Electronic Engineering
Electronic and Electrical Engineering, University of Surrey, U.K.
Source of funding: UK/HK Joint Research Scheme (British Council / Hong Kong Research Grants Council)
Starting date: 1996.09
DESIGN OPTIMIZATION, FABRICATION AND CHARACTERIZATION OF RESONANT TUNNELING DEVICES
To conduct an improved investigation of the different physical phenomena involved in the transport properties of resonant tunneling structures for optimized design and fabrication of high speed and optoelectronic devices.
Investigators: Dr. E.H. Li (Principal)
Professor H.L. Hartnagel
Departments: Electrical and Electronic Engineering
Institut fr Hochfrequenztechnik Technische Hochschule, Darmstadt, Germany
Source of funding: Germany/Hong Kong Joint Research Scheme
Starting date: 1997.03
PHOTONICS INTEGRATION AND DEVICE PERFORMANCE ENHANCEMENT USING INTERDIFFUSED QUANTUM WELLS
To develop a simple technique of fabricating integrated optoelectronic devices using spatially selective modification of quantum well (QW) shape after standard growth which, in turn, mofidies QW bandgap energy.
Investigators: Dr. E.H. Li (Principal)
Dr. C. Jagadish
Dr. S.F. Yu
Departments: Electrical and Electronic Engineering
Electronic Materials Engineering, Australian National University, Australia
Source of funding: Hong Kong Research Grants Council
Starting date: 1997.09
INTERACTIVE LEARNING UNDER MULTIMEDIA ENVIRONMENT FOR MATHEMATICS IN ENGINEERING AND SCIENCE
To develop a novel teaching method through technological tools to improve the current curricula for Engineering and Science Mathematics courses. The use of World Wide Web within a multimedia environment will be developed.
Investigators: Dr. E.H. Li (Principal)
Dr. J.T. Chan
Dr. K.S. Chan
Mr. Y.H. Chan
Dr. J. Lam
Mr. W.C. Shiu
Departments: Electrical and Electronic Engineering
Civil Engineering
Mathematics, The Hong Kong Baptist University
Mathematics
Mechanical Engineering
Physics and Materials Science, City University of Hong Kong
Source of funding: Action Learning Project
Teaching Development Grants issued by The University Grants Committee of Hong Kong
Starting date: 1997.09
HIGH PERFORMANCE III-NITRIDE LIGHT EMITTING DIODE
To improve the quality and brightness of blue-green III-Nitride LEDs, as well as their efficiency.
Investigators: Dr. E.H. Li (Principal)
Professor P.K. Ko
Professor H.S. Kwok
Departments: Electrical and Electronic Engineering
Electrical and Electronic Engineering, The Hong Kong University of Science and Technology
Source of funding: Committee on Research and Conference Grants
Starting date: 1998.07
ALGASB/GAINASSB-BASED INTEGRATED DETECTORS FOR THE NEAR AND MID-INFRARED REGIONS
The fabrication of infrared AlGaSb/GaInAsSb-based integrated optical devices. Optimation of the MBE growth of designed layer systems for the device applications. Then the fabrication of optical devices.
Investigators: Dr. E.H. Li (Principal)
Professor H.L. Hartnagel
Dr. G. Karunasiri
Departments: Electrical and Electronic Engineering
Electrical Engineering, National University of Singapore, Singapore
Institut fuer Hochfrequenztechnik Technische Universitaet Darmstatdt, Germany
Source of funding: Hong Kong Research Grants Council
Outstanding Researcher Award, Vice-Chancellor's Development Fund
Starting date: 1998.09
DYNAMIC MULTICASTING ON THE INTERNET
To exploit the special structure of the Internet and the concept of multicasting to reduce the transmission of redundant data on the Internet, thereby improving the user response time. Both discrete media and streamed media will be studied. Our approach is applicable to any communication network with a hierarchical structure.
Investigator: Professor V.O.K. Li
Department: Electrical and Electronic Engineering
Source of funding: Committee on Research and Conference Grants
Starting date: 1997.11
MULTIMEDIA PERSONAL COMMUNICATOR FOR 3G WIDEBAND CDMA (IMT 2000)
To transfer the core technologies and skills involved in building a 3G communicator to the local OEM industry.
Investigators: Professor V.O.K. Li (Principal)
Dr. K.N Lau
Department: Electrical and Electronic Engineering
Source of funding: Industrial Support Fund, Industry Department of Hong Kong Government
Starting date: 1999.06
PARALLELIZING Z-BUFFER BASED RENDERING METHODS
To design parallel rendering algorithms and develop software package for image generation.
Investigator: Dr. X.L. Lin
Department: Electrical and Electronic Engineering
Source of funding: Committee on Research and Conference Grants
Starting date: 1996.11
SUPPORTING EFFICIENT COMMUNICATION ON WORMHOLE SYSTEMS
To formulate the criteria and mechanisms of routing in wormhole systems to efficiently support the collective communication operations and develop a class of algorithms that best match the underlying communication mechnisms.
Investigator: Dr. X.L. Lin
Department: Electrical and Electronic Engineering
Source of funding: Hong Kong Research Grants Council
Starting date: 1996.12
ARCHITECTURE SUPPORT FOR FAULT-TOLERANT EFFICIENT COMMUNICATION IN DISTRIBUTED MEMORY MULTIPROCESSORS
To propose a new router architecture to support both one-to-one and collective communication; to develop a routing protocol to support deadlock-free fault-tolerant communication based on the new router; including for both one-to-one communication and collective communication; to design a new simulation scheme toward a more realistic performance evaluation for the proposed methods; to implement the prototype router in VLSI.
Investigators: Dr. X.L. Lin (Principal)
Dr. P.Y.S. Cheung
Department: Electrical and Electronic Engineering
Source of funding: Hong Kong Research Grants Council
Starting date: 1998.12
DEVELOPMENT OF ARTIFICIAL-INTELLIGENCE-BASED FAULT DIAGNOSTIC SYSTEMS FOR ELECTRIC TRAIN VEHICLES
To develop an effective diagnostic system for electric train vehicles. such that the out-of-service time of the train vehicles can be keep to a minimum and also to reduce the chance of failure during service.
Investigators: Dr. E.W.C. Lo (Principal)
Dr. M.H. Pong
Department: Electrical and Electronic Engineering
Source of funding: Hong Kong Research Grants Council
Starting date: 1997.08
GENERAL DEVICE PROCESSING AND CHARACTERIZATION
To study GaAs-based heterojunction transistor (HBTs) and SiGe-based devices, with emphasis on the development of fabrication methods and characterization of the electrical properties. Through this investigation, it is hoped to develop a device fabrication laboratory for students who are interested in IC technology and wireless applications.
Investigators: Mr. S.H.B. Lo (Principal)
Professor E.S. Yang
Department: Electrical and Electronic Engineering
Source of funding: Committee on Research and Conference Grants
Starting date: 1998.07
IMAGE SEQUENCE COMPRESSION BY HYBRID CODING AND VECTOR QUANTISATION
To investigate hybrid coding (combinations of cosine transform coding, DPCM and interpolative coding) and vector quantisation techniques to achieve high image sequence compression ratio. Picture quality of the restored image sequences will be evaluated both objectively and subjectively for transmission rates down to 56 kbps. The applications of this investigation are video telephony and stored image sequence data bases. For such services to be economically viable, suitable low bit rate video codes are necessary and this project investigates techniques for such purpose.
Investigator: Professor T.S. Ng
Department: Electrical and Electronic Engineering
Source of funding: Committee on Research and Conference Grants
Starting date: 1992.07
DIRECT SEQUENCE SPREAD SPECTRUM TECHNIQUE IN INTRA-OFFICE COMMUNICATIONS
To investigate direct sequence spread spectrum (DSSS) techniques as applied to an intra-office communication environment. The aims of this research are: 1) to investigate and develop possible system configurations such that a practical system can be developed which satisfies certain requriements; 2) to build prototype subsystems and to evaluate performances by both computer simulation and physical measurements on prototype subsystems.
Investigator: Professor T.S. Ng
Department: Electrical and Electronic Engineering
Source of funding: Committee on Research and Conference Grants
Starting date: 1993.07
EFFICIENT SIMULATION TECHNIQUES FOR DIGITAL COMMUNICATION OVER MULTIPATH FADING CHANNELS
To develop computationally efficient techniques for simulation of digital communications over a multipath fading channel. Using these techniques in simulation enables a faster evaluation of the performance of different digital communication systems via a multipath fading channel. Such channels are typical of land mobile and indoor communications systems.
Investigator: Professor T.S. Ng
Department: Electrical and Electronic Engineering
Source of funding: Committee on Research and Conference Grants
Starting date: 1996.07
SPREAD CODE DESIGN IN WAVELET-BASED CDMA SYSTEMS
To develop a systematic approach to the selection of wavelet basis functions that match the given channel characteristics and to establish their design procedures; to model and develop efficeint simulation techniques for such systems.
Investigators: Professor T.S. Ng (Principal)
Dr. S.C. Chan
Dr. J.Z. Wang
Dr. K.W. Yip
Department: Electrical and Electronic Engineering
Source of funding: Hong Kong Research Grants Council
Starting date: 1997.10
APPLICATION OF NOMAL FORM OF VECTOR FIELDS IN POWER SYSTEMS
The technique of normal form of vector fields will be used in power system analysis which can provide system non-linear modal information and show clearly the system frequency-domain non-linear characteristics especially the modal interaction. With the information we can predict correctly the feature of system non-linear behaviour under a fairly large disturbance; observe the interaction of system state variables and modes; study the effects of controllers on the state variables to be controlled. Moreover the method can be used to study the system stable and unstable manifolds and the mechanism of system separation. So the research will provide significant information for power system stability and control and promote the control and operation excellence of power systems.
Investigator: Dr. Y.X. Ni
Department: Electrical and Electronic Engineering
Source of funding: Committee on Research and Conference Grants
Starting date: 1998.07
ENHANCE POWER SYSTEM TRANSFER LIMIT AND CONTROLLABILITY VIA STATE-OF-THE ART POWER ELECTRONIC DEVICES WITH ADVANCED NONLINEAR CONTROLLERS
To derive mathematical models of TCSC and UPFC for electromagnetic and electromechanical transient analysis; to study their effects on system stability through computer analysis; to design advanced nonlinear controllers for TCSC and UPFC; to verify and demonstrate controller performance using computer simulation; to study the feasibility/benefits of applying FACTS to the Hong Kong Power System.
Investigators: Dr. Y.X. Ni (Principal)
Dr. M.H. Pong
Professor F.F. Wu
Department: Electrical and Electronic Engineering
Source of funding: Hong Kong Research Grants Council
Starting date: 1998.09
CONTROL SYSTEM DESIGN AUTOMATION FOR MECHANICAL SYSTEMS
To convert MEDAL into a shell environment for use with MATLAB, thus extending the command interpreter of MATLAB; to investigate the Kessler/Manabe (KM) design approach especially regarding the tuning of design parameters using an interactive multi-objective optimization approach; to develop a knowledge base to help with the choice of the design parameters of the KM approach; to apply the developed methodology for the design of multi-inertia systems.
Investigator: Dr. G.K.H. Pang
Department: Electrical and Electronic Engineering
Source of funding: Hong Kong Research Grants Council
Starting date: 1997.09
VISIBLE LIGHT EMITTING DIODES (LEDS) FOR BOTH SIGNALLING AND COMMUNICATIONS IN INTELLIGENT TRANSPORT SYSTEMS (ITS)
To design an optical system with appropriate lens so as to maximize the transmitter field power on the photodetector; to design the electronic circuits for the transmitter and receiver in the optical data link; to investigate the issues on modulation, demodulation and communication protocols; to design and develop a user-interface for the display of traffic information and vehicle location received from a traffic light; to develop this LED-based data communication technology for other applications related to toys and consumer electronics.
Investigator: Dr. G.K.H. Pang
Department: Electrical and Electronic Engineering
Source of funding: Committee on Research and Conference Grants
Starting date: 1998.07
LOW-COST AUTOMATED FABRIC INSPECTION SYSTEM
To build a low-cost automated fabric inspection system, with a performance target to detect in real time at least 98% of significant defects down to 2 square millimetres area, and to cover fabric 80 inches wide moving at least one feet per second.
Investigator: Dr. G.K.H. Pang
Department: Electrical and Electronic Engineering
Source of funding: Industrial Support Fund, Industry Department of Hong Kong Government
Starting date: 1999.07
EMI AND HARMONICS REDUCTION OF SWITCHING POWER SUPPLIES
To tackle the electrical interferences produced by switching power supplies.
Investigator: Dr. M.H. Pong
Department: Electrical and Electronic Engineering
Source of funding: Hong Kong Research Grants Council
Starting date: 1996.09
EMI ANALYSIS IN PCB DESIGN FOR SWITCHING POWER SUPPLY
To study and understand the emission and coupling of electric and magnetic field on printed circuit boards (PCB) and to provide information to PCB designer on required dimension and separation of these layouts and avoid EMI problem in an early stage in the design process; to develop measurement technique to obtain the EMI information from prototype and identify switching point are the most critical among the SMPS; to develop a field model of PCB tracks which provides the field emission in the neighborhood of a conductor on a PCB; to develop methods to compute the likely interference to a victim circuit as a result of the field emission from neighboring traces; such information will be critical for PCB designer; to make use of Artificial Intelligence method for design guidance, and with possibly software implementation. The system will analyze the overall emission level of the PCB design. If it violates the rules and regulations, the intelligence system will guide the user to make suitable adjustment.
Investigator: Dr. M.H. Pong
Department: Electrical and Electronic Engineering
Source of funding: Hong Kong Research Grants Council
Starting date: 1998.10
SWITCHING POWER CONVERTER DEVELOPMENT PROGRAM
To establish a technology platform on which products can be readily turned out. The theme of this platorm is target at off-line low voltage power converters.
Investigator: Dr. M.H. Pong
Department: Electrical and Electronic Engineering
Source of funding: Industrial Support Fund, Industry Department of Hong Kong Government
Starting date: 1998.12
VIDEO COMPRESSION AND TRANSMISSION TECHNIQUES FOR HIGH SPEED LOCAL AREA NETWORKS
To investigate communication protocols and video compression techniques for playing back of compressed video and providing video conferencing to support CSCW in a high speed LAN environment.
Investigators: Dr. K.W. Tse (Principal)
Dr. S.C. Chan
Department: Electrical and Electronic Engineering
Source of funding: RGC Fundable Projects (Block Grant Funded)
Starting date: 1997.12 Completion date: 1998.09
HIGH-PERFORMANCE POWER-ELECTRONIC CONTROL SYSTEMS
To promote the wider applications of higher technologies in the power and industrial electronics sectors; including the field of digitally controlled static exciters, power system stabilisers, static reactive power compensators and solid-state ac driv working either singly or in coordinated control systems; with intelligent high-speed processing carried out by parallel processors, digital signal processors or artificial neural networks.
Investigators: Dr. S.K. Tso (Principal)
Dr. P.T. Ho
Departments: Electrical and Electronic Engineering
Computer Centre
Source of funding: China Light and Power Co. Ltd.
Starting date: 1985.06
INTELLIGENT ROBOT CONTROL
To develop neural-network and sensor-based techniques applicable to the effective and flexible control of industrial robots.
Investigator: Dr. S.K. Tso
Department: Electrical and Electronic Engineering
Starting date: 1991.02
PERFORMANCE ANALYSIS OF CDMA OVERLAY SITUATIONS FOR CELLULAR MOBILE COMMUNICATIONS
To investigate how efficiently adaptive filters suppress narrowband interference in CDMA overlay.
Investigators: Dr. J.Z. Wang (Principal)
Professor T.S. Ng
Dr. K. Zhang
Departments: Electrical and Electronic Engineering
Rockwell Co., U.S.A.
Source of funding: Hong Kong Research Grants Council
Starting date: 1998.01
STUDY OF ONE-HOP PER SYMBOL FREQUENCY HOPPING MULTIPLE-ACCESS (FHMA) SYSTEMS FOR CELLULAR MOBILE COMMUNICATIONS
To analyse the bit error rate performance of the cellular one-hop per symbol FHMA system over both an ideal and a realistic cell interference, and the near/far problem of the cellular FHMA system will be investigated. Also, this research considers the effect of the values of frequency reuse factor (N) on the system capacity of the cellular frequency hopping system.
Investigator: Dr. J.Z. Wang
Department: Electrical and Electronic Engineering
Source of funding: Committee on Research and Conference Grants
Starting date: 1998.07
PERFORMANCE ANALYSIS OF FREQUENCY-HOPPING MULTIPLE-ACCESS SYSTEMS FOR CELLULAR MOBILE COMMUNICATIONS
(i) To analyse the bit error rate performance of the cellular FHMA system over both an ideal and a realistic mobile channels. The multiple access interference, adjacent cell interference, and the near/far problem of the cellular FHMA system will be investigated. Also, this research considers the effect of the values of frequency reuse factor(N) on the system capacity of the cellular frequency hopping system; (ii) to do performance simulation for such a system.
Investigators: Dr. J.Z. Wang (Principal)
Dr. X.L. Lin
Professor T.S. Ng
Department: Electrical and Electronic Engineering
Source of funding: RGC Fundable Projects (Block Grant Funded)
Starting date: 1998.11
COMPUTER-AIDED POWER SYSTEM PLANNING AND DESIGN
To develop a conceptual framework for power system planning that can cope with new industry structures and emerging technologies.
Investigators: Professor F.F. Wu (Principal)
Professor C.C. Chan
Dr. P.Y.S. Cheung
Professor G. Gross
Dr. A. Losi
Dr. C.M. Shen
Dr. L.A. Snider
Departments: Electrical and Electronic Engineering
Electrical Engineering, University of Cassino, Italy
Electrical and Computer Engineering, University of Illinois, U.S.A.
Source of funding: Hong Kong Research Grants Council
Starting date: 1997.01
PLANNING AND ANALYSIS SOFTWARE FOR ASIA SYSTEMS
To identify factors that help developing countries leapfrog the historical development patterns of the developed countries and move directly to sustainable electrification.
Investigator: Professor F.F. Wu
Department: Electrical and Electronic Engineering
Source of funding: Electric Power Research Institute, U.S.A.
Starting date: 1997.06
DESIGN OF A DISTRIBUTED COMPUTING INFRASTRUCTURE FOR REAL-TIME CONTROL OF POWER SYSTEMS
To develop a feasible design of distributed computing environment for real-time control of power systems using emerging technologies in client/server architecture.
Investigator: Professor F.F. Wu
Department: Electrical and Electronic Engineering
Source of funding: Committee on Research and Conference Grants
Starting date: 1997.07
SUSTAINABLE ELECTRICICATION FOR THE DEVELOPING WORLD
To identify factors that help developing countries leapfrog the historical development patterns of the developed countries and move directly to sustainable electrification.
Investigators: Professor F.F. Wu (Principal)
Professor C.C. Chan
Professor R.Y.C. Wong
Departments: Electrical and Electronic Engineering
School of Business
Source of funding: Electric Power Research Institute, U.S.A.
Hong Kong Research Grants Council
Starting date: 1998.01
DESIGN AND FABRICATION OF HIGH-FREQUENCY GAAS HETERO-EMITTER BIPOLAR TRANSISTORS (HEBTS) FOR WIRELESS SYSTEMS
To investigate the potential of GaAs HEBT structures for both discreta and integrated devices and circuits operated in the microwave regime.
Investigator: Professor E.S. Yang
Department: Electrical and Electronic Engineering
Source of funding: Committee on Research and Conference Grants
Starting date: 1997.11
THE JOCKEY CLUB MAGNETIC RESONANCE IMAGING ENGINEERING CENTRE
To establish a world class centre for the advancement of biomedical research, medical technology and education, clinical diagnosis and health care, as well as medical and pharmaceutical industry in Hong Kong and Southern China area.
Investigators: Professor E.S. Yang (Principal)
Dr. Q.Y. Ma
Department: Electrical and Electronic Engineering
Source of funding: The Hong Kong Jockey Club Charities Trust
Starting date: 1998.07
GAINP POWER HETEROJUNCTION BIPOLAR TRANSISTOR
To produce a one-watt RF power amplifier with low distortion and high efficiency for a single power supply of 2.5-3.5V. Thus, handsets can have clearer signal, be lighter and smaller as well as having an extended talk-time before recharging of the battery.
Investigators: Professor E.S. Yang (Principal)
Dr. C.C. Hsu
Dr. Y.F. Yang
Departments: Electrical and Electronic Engineering
Electrical and Electronic Engineering, The Chinese University of Hong Kong
Source of funding: Hong Kong Research Grants Council
Outstanding Researcher Award, Vice-Chancellor's Development Fund
Starting date: 1998.09
SPREAD SPECTRUM COMMUNICATIONS USING MULTICARRIER MULTICODE TRANSMISSION
To study the error performance of MCMC system operating in mobile and personal communication environments characterized by frequency-selective fading channels, and to further study the error performance of such a system when operated in a multi-cell environment using DSSS/TDMA technique; to implement an inexpensive proof-of-concept demonstration system and in this process to investigate techniques in multicarrier synchronization, clock recovery, carrier tracking and other related problems.
Investigator: Dr. K.W. Yip
Department: Electrical and Electronic Engineering
Source of funding: Committee on Research and Conference Grants
Starting date: 1999.05
INTEGRATED SEMICONDUCTOR LASERS SIMULATOR
A high performance simulation program - ISLS (Integrated Semiconductor Lasers Simulator) is proposed to analyze and design high-power and speed-speed semiconductor lasers of various kind.
Investigator: Dr. S.F. Yu
Department: Electrical and Electronic Engineering
Source of funding: Committee on Research and Conference Grants
Starting date: 1997.07 Completion date: 1999.05
HIGH SPEED VERTICAL CAVITY SURFACE EMITTING LASERS WITH DIFFUSED QUANTUM WELLS STRUCTURE
To understand and overcome the existing obstacles (limitation of speed and multimode operation) in vertical cavity surface emitting semiconductor lasers (VCSEL's) as well as to realize the devices for the application in high speed optical communication systems. Furthermore, the idea of using diffused quantum wells (DFQW's) is introduced in our design of VCSEL's.
Investigator: Dr. S.F. Yu
Department: Electrical and Electronic Engineering
Source of funding: Committee on Research and Conference Grants
Starting date: 1998.07
COMPUTER SIMULATOR OF VERTICAL CAVITY SURFACE EMITTING LASERS
To develop a computer simulator, which is compatible with the experimental results, to analyze the dynamic behavior of VCSEL's. However, to develop a computer simulator with full treatment of nonlinear effects may require extensive computational effort (i.e. long computation time and high performance computer).
Investigator: Dr. S.F. Yu
Department: Electrical and Electronic Engineering
Source of funding: Hong Kong Research Grants Council
Starting date: 1998.08
SIMULATION STUDY OF FIBER SOLITON COMMUNICATION SYSTEMS
(1) To develop novel numerical methods for studying soliton propagation in optical fiber in order to alleviate the limitations imposed by the existing methods. In this project, novel methods in both the time and frequency domains will be explored to develop simulation models of extended applicable range. Based on the expertise gained in our newly developed simulation models and Fourier Series Analysis Technique, new methodologies shall be designed and tested. (2) The new numerical techniques developed in this project shall be applied to model the soliton transmission control in both time and frequency domain as well as designing an optimal dispersion management strategy for ultra-high bitrate and distance applications. Extensive simulations shall be carried to identify optimal control and the effects of parameters such as higher order dispersion and non-linearity.
Investigator: Dr. T.T.I. Yuk
Department: Electrical and Electronic Engineering
Source of funding: Committee on Research and Conference Grants
Starting date: 1998.07
FEATURE PRESERVING NOISE REMOVAL ALGORITHMS
To research and develop a class of robust feature preserving filter algorithms that possess the following characteristics: (1) over 95% of success rate in identifying pixels that are corrupted by additive random noise; (2) selective filtering based on a priority knowledge of the corrupted pixels; (3) faster than conventional "blind" filters even when applied iteratively.
Investigator: Dr. N.H.C. Yung
Department: Electrical and Electronic Engineering
Source of funding: Committee on Research and Conference Grants
Starting date: 1996.07
IMPLEMENTATION OF A FLEXIBLE AND DOWNLOADABLE VIDEO CODEC PROTOTYPE ON THE TMS320C80 DIGITAL SIGNAL PROCESSOR
To design and develop a generic video codec system architecture using object-oriented technique; to investigate the real-time implementation of the codec architecture on the TMS320C80; to research and develop a class of feature preserving filter algorithms as pre/post processing filters on the TMS320C80.
Investigator: Dr. N.H.C. Yung
Department: Electrical and Electronic Engineering
Source of funding: Texas Instruments Tsukuba R & D Center
Starting date: 1996.09
BENCHMARK EXPERIMENTS ON THE IBM SP2 AND THE SGI POWER CHALLENGE MULTIPROCESSORS
To evaluate the performance of the IBM SP2 (SP2) and SGI POWER CHALLENGE(TM) (SGI PC) multiprocessors.
Investigators: Dr. N.H.C. Yung (Principal)
Professor K. Hwang
Dr. X.L. Lin
Dr. C.L. Wang
Departments: Electrical and Electronic Engineering
Computer Science and Information Systems
Source of funding: RGC Fundable Projects (Block Grant Funded)
Starting date: 1997.12 Completion date: 1998.09
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