Articles

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Study on Generalized Analysis Model for Fringe Pattern Profilometry (with Y. Hu, J. Xi, Z. Yang, and E. Li), Faculty of Informatics - Papers (2008)
This paper presents a generalized analysis model for fringe pattern profilometry. We mathematically derived a...
 

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Improving the Performance in an Optical feedback Self-mixing Interferometry System using Digital Signal Pre-processing (with Y. Yu and J. Xi), Faculty of Informatics - Papers (2007)
This paper considers the issue of noise reduction associated with Optical Feedback Self-mixing Interferometries (OFSMI)....
 

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Multi-channel Digital Fringe Calibration for Structured Light Profilometers using Neural Networks (with M. Baker and J. Xi), Faculty of Informatics - Papers (2007)
The performance of structured light profilometers is significantly hindered by the generation of distorted sinusoid...
 

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Estimating the parameters of semiconductor lasers based on weak optical feedback self-mixing interferometry (with J. Xi, Y. Yu, and T. Bosch), Faculty of Informatics - Papers (2005)
The paper presents a practical approach for measuring the linewidth enhancement factor /spl alpha/ of...
 

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A new waveform interpolation coding scheme based on pitch synchronous wavelet transform decomposition (with N. R. Chong and I. Burnett), Faculty of Informatics - Papers (2000)
This correspondence uses a pitch synchronous wavelet transform (PSWT) as an alternative characteristic waveform decomposition...
 

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Computing running DCTs and DSTs based on their second-order shift properties (with J. Xi), Faculty of Informatics - Papers (2000)
This paper presents a set of second-order recursive equations which are referred to as the...
 

Presentations

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Transition Analysis for Moderate Feedback Self-Mixing Interferometry (with L. Wei, J. Xi, and Y. Yu), Faculty of Informatics - Papers (2007)
We present a theoretical analysis on the locations of transition points in moderate feedback self-mixing...
 

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Displacement Estimation Based on Model Calibration in Weak Feedback Optical Self-Mixing System (with L. Wei and J. Xi), Faculty of Informatics - Papers (2007)
This paper presents a novel method to estimate displacement of a moving object based on...
 

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Pre-Processing of Signals Observed from Laser Diode Self-mixing Intereferometries using Neural Networks (with L. Wei, Y. Yu, and J. Xi), Faculty of Informatics - Papers (2007)
This paper presents a novel neural network signal interpolation technique in order to eliminate the...
 

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Fringe Calibration using Neural Network Signal Mapping for Structured Light Profilometers (with M. J. Baker and J. Xi), Faculty of Informatics - Papers (2006)
We present a novel neural network signal calibration technique to improve the performance of triangulation...
 

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Improving the Measurement Accuracy of FBG Sensor Using Adaptive filters (with X. Xu and J. Xi), Faculty of Informatics - Papers (2006)
Adaptive filters are presented for improving the wavelength detection accuracy of FBG sensors within a...
 

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Improving the Performance of IWDM FBG Sensing System Using Tabu-Gradient Search Algorithm (with X. Xu and J. Xi), Faculty of Informatics - Papers (2006)
A Tabu-gradient search algorithm is presented for improving the performance of FBG sensors in an...
 

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Optimal Filtering based Shift Estimation for Fringe Pattern Profilometry by Generalized Analysis Model (with Y. Hu, J. Xi, and Z. Yang), Faculty of Informatics - Papers (2006)
This paper presents a new algorithm for fringe pattern parofilometry by utilizing generalized analysis model,...
 

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Phase Unwrapping of Self-mixing Signals Observed in Optical Feedback Interferometry for Displacement Measurement (with L. Wei, J. Xi, and Y. Yu), Faculty of Informatics - Papers (2006)
With an Optical feedback interferometry (OFI), a self-mixing signal (SMS) can be observed and employed...
 

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Improved Three-step Phase Shifting Profilometry Using Digital Fringe Pattern Projection (with Y. Hu, J. Xi, and Z. Yang), Faculty of Informatics - Papers (2006)
In this paper, an improved method for three-step phase shifting profilometry (PSP) is presented to...
 

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STC-MIMO Block Spread OFDM in Frequency Selective Rayleigh Fading Channels (with L. C. Tran, X. Huang, and E. Dutkiewicz), Faculty of Informatics - Papers (2006)
In this paper, we expand the idea of spreading the transmitted symbols in OFDM systems...
 

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Fringe Pattern Profilometry Based on Inverse Function Analysis (with Y. Hu, J. Xi, E. Li, and Z. Yang), Faculty of Informatics - Papers (2005)
In this paper, we proposed a new algorithm, referred to as inverse function analysis (IFA)...
 

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Multi-point fiber Bragg grating based vibration measurement system with high sensitivity and fast frequency response (with E. Li and J. Xi), Faculty of Informatics - Papers (2005)
We have proposed and demonstrated a new fiber Bragg grating (FBG) based vibration measurement system...
 

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Optimisation of triangulation based optical profilometers utilising digital video projection technology (with M. J. Baker, J. Xi, and E. Li), Faculty of Informatics - Papers (2005)
Fast, high precision and automated optical noncontact surface profile and shape measurement has been an...
 

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A half-frequency domain approach for convolutive blind source separation based on Kullback-Leibler divergence (with T. Mei, F. Yin, J. Xi, and A. Mertins), Faculty of Informatics - Papers (2005)
This paper studies the problem of blind separation of convolutive mixtures by means of Kullback-Leibler...
 

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An improved dynamic model for optical feedback self-mixing interferometry-based measurement and instrumentation (with J. Xi, Yuanguang Yu, and E. Li), Faculty of Informatics - Papers (2005)
This paper presents a new model that describes the behaviour of optical feedback self-mixing interferometry...
 

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Optical signal processing for fiber Bragg grating based wear sensors (with E. Li and J. Xi), Faculty of Informatics - Papers (2005)
In this study, we propose a simplified signal processing scheme for fiber Bragg grating (FBG)...
 

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Shift estimation method based fringe pattern profilometry and performance comparison (with Y. Hu, J. Xi, E. Li, and Z. Yang), Faculty of Informatics - Papers (2005)
In this paper, we present and study two approaches to fringe pattern profilometry (FPP) technique....
 

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Power efficient connected topologies in ad-hoc networks (with G. Srivastava and P. Boustead), Faculty of Informatics - Papers (2005)
Power efficient topologies in an ad-hoc network can reduce battery usage and increase the lifetime...
 

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Link redundancy based connected topologies in ad-hoc networks (with G. Srivastava and P. Boustead), Faculty of Informatics - Papers (2005)
The topology of a wireless network can have a significant impact on the connectivity, fault...
 

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Generalized Analysis Model for Fringe Pattern Profilometry (with Y. Hu, J. Xi, Z. Yang, and E. Li), Faculty of Informatics - Papers (2005)
In this paper, a generalized analysis model for fringe pattern profilometry is presented. The...
 

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Distributed range assignment for reliable channel access and reuse in ad-hoc networks (with G. Srivastava and P. Boustead), Faculty of Informatics - Papers (2004)
The available bandwidth in an ad-hoc network can decrease rapidly due to the shared access...
 

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A Calibration Approach for Decoupling Colour Cross-Talk Using Nonlinear Blind Signal Separation Network (with Y. Hu, J. Xi, E. Li, Z. Yang, and Yuanguang Yu), Faculty of Informatics - Papers (2004)
We present a calibration approach to invert the nonlinear mixing process of colour cross-talk in...
 

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Accuracy limitations introduced by digital projection sources in profilometric optical metrology systems (with M. J. Baker, J. Xi, and E. Li), Faculty of Informatics - Papers (2004)
The accuracy of profilometric optical metrology systems utilising Digital Fringe Projection (DFP) is analysed. An...
 

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Measuring Multiple Parameters in a Self-Mixing Optical Feedback System (with Y. Yu, J. Xi, E. Li, and T. Bosch), Faculty of Informatics - Papers (2004)
We propose a new approach that yields the values of multiple parameters at the same...
 

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Topology control in heterogeneous ad-hoc networks (with G. Srivastava and P. Boustead), Faculty of Informatics - Papers (2004)
Topology control in an ad-hoc network can provide better spatial reuse of the wireless channel...
 

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De-cumulant based approaches for convolutive blind source separation (with T. Mei, J. Xi, and F. Yin), Faculty of Informatics - Papers (2004)
This paper studies the blind separation of signal sources (BSS) based on the approach of...
 

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Decorrelation: sufficient for convolutive blind source separation? (with J. Xi, T. Mei, and F. Yin), Faculty of Informatics - Papers (2004)
This paper considers blind separation of signal sources in a convolutive mixing environment. It tries...
 

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Integration of DFT and cosine-modulated filter banks with blind separation of convolutively mixed non-stationary sources (with I. Russell, J. Xi, and A. Mertins), Faculty of Informatics - Papers (2004)
In this paper, oversampled M channel FIR filter banks using both DFT modulation and cosine...
 

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Reliable optimised flooding in ad hoc networks (with J. Lipman and P. Boustead), Faculty of Informatics - Papers (2004)
Information dissemination (flooding) forms an integral part of routing protocols, network management, service discovery and...
 

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Blind source separation of nonstationary convolutively mixed signals in the subband domain (with I. Russell, J. Xi, and A. Mertins), Faculty of Informatics - Papers (2004)
The paper proposes a new technique for blind source separation (BSS) in the subband...
 

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A routing strategy for heterogeneous mobile ad hoc networks (with M. Abolhasan and J. Lipman), Faculty of Informatics - Papers (2004)
This paper presents a new routing strategy for heterogeneous mobile ad hoc networks. We refer...
 

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Resource aware information dissemination in ad hoc networks (with J. Lipman, P. Boustead, and J. Judge), Faculty of Informatics - Papers (2003)
Information dissemination (flooding) forms an integral part of routing protocols, network management, service discovery and...
 

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TCMCA: a source-based distributed topology control algorithm for mission critical applications in mobile ad-hoc networks (with G. Srivastava, P. Boustead, and C. Ware), Faculty of Informatics - Papers (2003)
Topology control in a wireless ad-hoc network allows better spatial reuse of the wireless channel...
 

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Simulation of Capture Behaviour in IEEE 802.11 Radio Modems (with C. Ware and T. A. Wysocki), Faculty of Informatics - Papers (2001)
In this paper we investigate the performance of common capture models in terms of the...
 

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Hidden terminal jamming problems in IEEE 802.11 mobile ad hoc networks (with C. Ware and T. A. Wysocki), Faculty of Informatics - Papers (2001)
This paper addresses experimental measurements from an IEEE 802.11 ad hoc network testbed, which indicate...
 

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Label switching using the IPv6 address hierarchy (with P. Boustead), Faculty of Informatics - Papers (2000)
Current label switching protocols can use routing, address, and address hierarchy information to group...
 

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An examination of IP/ATM cut-through forwarding in dynamically routed networks (with P. Boustead), Faculty of Informatics - Papers (2000)
Multiprotocol over ATM (MPOA), IP switching and multiprotocol label switching (MPLS) have distinctly different mechanisms...
 

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An improved channel model for ADSL and VDSL systems (with D. Franklin and J. Xi), Faculty of Informatics - Papers (2000)
This paper examines existing channel models used with xDSL systems and identifies a key shortcoming...
 

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On the INFOMAX algorithm for blind signal separation (with J. Xi, A. C. Tsoi, and W. C. Siu), Faculty of Informatics - Papers (2000)
This paper provides an analytical examination of the INFOMAX algorithm and establishes its effectiveness for...
 

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Performance analysis of QoS mechanisms in IP networks (with D. Jia and E. Dutkiewicz), Faculty of Informatics - Papers (2000)
Integrated services IP networks are expected to provide a variety of services with differentiated QoS....
 

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Connection admission control in micro-cellular multi-service mobile networks (with R. S. Raad and E. Dutkiewicz), Faculty of Informatics - Papers (2000)
This paper investigates the use of fixed bandwidth reservation for multi-service mobile networks. In particular...
 

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Differentiated service performance analysis (with L. V. Nguyen and A. Eyers), Faculty of Informatics - Papers (2000)
Differentiated service (DiffServ) has been proposed as an alternative for Integrated service. It aims to...
 

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IP forwarding alternatives in cell switched optical networks (with P. Boustead), Faculty of Informatics - Papers (2000)
Optical switching will enable core Internet packet switching to scale with future transmission rate increases....
 

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Unfairness and capture behaviour in 802.11 adhoc networks (with C. Ware, J. Judge, and E. Dutkiewicz), Faculty of Informatics - Papers (2000)
We address issues with the performance of IEEE 802.11, when used in the adhoc mode,...
 

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Linear prediction incorporating simultaneous masking (with J. Lukasiak, I. Burnett, and M. M. Thomson), Faculty of Informatics - Papers (2000)
Whilst linear prediction is the cornerstone of most modern speech coders, few of these...