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Journal of Systems Engineering and Electronics

Issue 2 • Date June 2004

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Displaying Results 1 - 24 of 24
  • [Front cover]

    Publication Year: 2004, Page(s): c1
    IEEE is not the copyright holder of this material | PDF file iconPDF (797 KB)
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  • Copyright page

    Publication Year: 2004, Page(s): 1
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  • Contents

    Publication Year: 2004, Page(s): 1
    IEEE is not the copyright holder of this material | PDF file iconPDF (245 KB)
    Freely Available from IEEE
  • UKF-based attitude determination method for gyroless satellite

    Publication Year: 2004, Page(s):105 - 109
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (784 KB)

    UKF (unscented Kalman filtering) is a new filtering method suitable to nonlinear systems. The method need not linearize nonlinear systems at the prediction stage of filtering, which is indispensable in EKF (extended Kalman filtering). As a result, the linearization error is avoided, and the filtering accuracy is greatly improved. UKF is applied to the attitude determination for gyroless satellite.... View full abstract»

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  • Image processing algorithm acceleration using reconfigurable macro processor model

    Publication Year: 2004, Page(s):110 - 114
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (2438 KB)

    The concept and advantage of reconfigurable technology is introduced. A kind of processor architecture of reconfigurable macro processor (RMP) model based on FPGA array and DSP is put forward and has been implemented. Two image algorithms are developed: template-based automatic target recognition and zone labeling. One is estimating for motion direction in the infrared image background, another is... View full abstract»

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  • Optimal design study of high order FIR digital filters based on neural network algorithm

    Publication Year: 2004, Page(s):115 - 119
    Cited by:  Papers (2)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (919 KB)

    An optimal design approach of high order FIR digital filter is developed based on the algorithm of neural networks with cosine basis function. The main idea is to minimize the sum of the square errors between the amplitude response of the desired FIR filter and that of the designed by training the weights of neural networks, then obtains the impulse response of FIR digital filter. The convergence ... View full abstract»

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  • Key issues of multiple access technique for LEO satellite communication systems

    Publication Year: 2004, Page(s):120 - 125
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1494 KB)

    The large carrier frequency shift caused by the high-speed movement of satellite (Doppler effects) and the propagation delay on the up-down link are very critical issues in an LEO satellite communication system, which affects both the selection and the implementation of a suitable access method. A Doppler based multiple access technique is used here to control the flow and an MPRMA-HS protocol is ... View full abstract»

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  • New de-interlacing method based on adaptive weight

    Publication Year: 2004, Page(s):126 - 130
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (2202 KB)

    De-interlacing is very important when converting interlaced pictures to progressive pictures in format conversion. Multi-formats digital broadcast and progressive display requires the de-interlacing technique. An adaptive weight deinterlacing method is proposed. It combines motion compensation technique with directional-based spatio-temporal filter efficiently. Experiment results indicate that the... View full abstract»

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  • New blind adaptive approach to multiuser detection in CDMA systems

    Publication Year: 2004, Page(s):131 - 134
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (746 KB)

    Due to a number of advantages, blind adaptive multiuser detector has become a research hotspot in recent years. But low convergence rate problem occurs to many blind adaptive algorithms. A new blind adaptive approach to multiuser detection is presented. The simulation results show that by reasonably choosing time varying step size, the proposed detector can not only improve the convergence rate, b... View full abstract»

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  • Electronic market models for decision support systems on the Web

    Publication Year: 2004, Page(s):135 - 141
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1124 KB)

    With the prevalence of the Web, most decision-makers are likely to use the Web to support their decision-making. Web-based technologies are leading a major stream of researching decision support systems (DSS). We propose a formal definition and a conceptual framework for Web-based open DSS (WODSS). The formal definition gives an overall view of WODSS, and the conceptual framework based on browser/... View full abstract»

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  • Overview of multi-objective optimization methods

    Publication Year: 2004, Page(s):142 - 146
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (845 KB)

    To assist readers to have a comprehensive understanding, the classical and intelligent methods roundly based on precursory research achievements are summarized in this paper. First, basic conception and description about multi-objective (MO) optimization are introduced. Then some definitions and related terminologies are given. Furthermore several MO optimization methods including classical and cu... View full abstract»

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  • Application of pre-whitened-constrained-MUSIC in ship-borne radar

    Publication Year: 2004, Page(s):147 - 152
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1175 KB)

    In ship-borne radar, because of the influence of interference factors such as the correlation of background array noise and the coherence of targets and so on, the performance of high-resolution algorithms such as MUSIC is degraded. In this document by pre-whitening of background array color noise, de-correlation of coherent targets, compensation of amplitude-phase mismatch, pre-whitened-constrain... View full abstract»

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  • Robust stability analysis of uncertain discrete-time systems with state delay

    Publication Year: 2004, Page(s):153 - 157
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1022 KB)

    The sufficient conditions of stability for uncertain discrete-time systems with state delay have been proposed by some researchers in the past few years, yet these results may be conservative in application. The stability analysis of these systems is discussed, and the necessary and sufficient condition of stability is derived by method other than constructing Lyapunov function and solving Riccati... View full abstract»

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  • Intelligent control over chaos in the rolling process and its comparison with tracking control

    Publication Year: 2004, Page(s):158 - 162
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (847 KB)

    Some existing methods for chaos control in engineering fields are analyzed and their drawbacks are pointed out. A tracking method can solve these problems to some extent, but it still depends on the mathematical model of the system to be controlled. An intelligent method based on fuzzy neural network (FNN) is used to control chaos in engineering fields. The FNN is employed to learn the inherent dy... View full abstract»

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  • Application of transmit diversity for improved robust watermarking

    Publication Year: 2004, Page(s):163 - 170
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (3276 KB)

    Many common multimedia signal processing, including cropping, filtering, and perceptual coding, make watermark signal fading-like modification. A scheme that applies transmit diversity technique to improve robustness of digital watermarking is presented. First, the scheme decomposes the original image using wavelet pyramid algorithm and chooses the middle-frequency band for transmission channel th... View full abstract»

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  • Learning-based force servoing control of a robot with vision in an unknown environment

    Publication Year: 2004, Page(s):171 - 178
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1402 KB)

    A learning-based control approach is presented for force servoing of a robot with vision in an unknown environment. Firstly, mapping relationships between image features of the servoing object and the joint angles of the robot are derived and learned by a neural network. Secondly, a learning controller based on the neural network is designed for the robot to trace the object. Thirdly, a discrete t... View full abstract»

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  • Adaptive stabilization for cascade nonlinear systems

    Publication Year: 2004, Page(s):179 - 183
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (772 KB)

    An adaptive controller of full state feedback for certain cascade nonlinear systems achieving input-to-state stability with respect to unknown bounded disturbance is designed using backstepping and control Lyapunov function (CLF) techniques. We show that unknown bounded disturbance can be estimated by update laws, which requires less information on unknown disturbance, as a part of stabilizing con... View full abstract»

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  • Research on message resource optimization in computer supported collaborative design

    Publication Year: 2004, Page(s):184 - 189
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (2284 KB)

    An adaptive mechanism is presented to reduce bandwidth usage and to optimize the use of computing resources of heterogeneous computer mixes utilized in CSCD to reach the goal of collaborative design in distributed-synchronous mode. The mechanism is realized on a C/S architecture based on operation information sharing. Firstly, messages are aggregated into packets on the client. Secondly, an outgoi... View full abstract»

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  • Fast lossless color image compression method using perceptron

    Publication Year: 2004, Page(s):190 - 196
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1558 KB)

    The technique of lossless image compression plays an important role in image transmission and storage for high quality. At present, both the compression ratio and processing speed should be considered in a real-time multimedia system. A novel lossless compression algorithm is researched. A low complexity predictive model is proposed using the correlation of pixels and color components. In the mean... View full abstract»

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  • Ontology-supported and XML-based knowledge description language

    Publication Year: 2004, Page(s):197 - 204
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1276 KB)

    Differences in the structure and semantics of knowledge that is created and maintained by the various actors on the World Wide Web make its exchange and utilization a problematic task. This is an important issue facing organizations undertaking knowledge management initiatives. An XML-based and ontology-supported knowledge description language (KDL) is presented, which has three-tier structure (co... View full abstract»

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  • Propagating adaptive-weighted vector median filter for motion-field smoothing

    Publication Year: 2004, Page(s):205 - 210
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (3272 KB)

    In the field of predictive video coding and format conversion, there is an increasing attention towards estimation of the true inter-frame motion. The restoration of motion vector field computed by 3-D RS is addressed and a propagating adaptive-weighted vector median (PAWVM) post-filter is proposed. This approach decomposes blocks to make a better estimation on object borders and propagates good v... View full abstract»

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  • Efficient face recognition method based on DCT and LDA

    Publication Year: 2004, Page(s):211 - 216
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (2738 KB)

    It has been demonstrated that the linear discriminant analysis (LDA) is an effective approach in face recognition tasks. However, due to the high dimensionality of an image space, many LDA based approaches first use the principal component analysis (PCA) to project an image into a lower dimensional space, then perform the LDA transform to extract discriminant feature. But some useful discriminant ... View full abstract»

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  • Single-channel speech enhancement method based on masking properties and minimum statistics

    Publication Year: 2004, Page(s):217 - 224
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (3241 KB)

    A single-channel speech enhancement method of noisy speech signals at very low signal-to-noise ratios is presented, which is based on masking properties of the human auditory system and power spectral density estimation of nonstationary noise. It allows for an automatic adaptation in time and frequency of the parametric enhancement system, and finds the best tradeoff among the amount of noise redu... View full abstract»

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  • Instructions for authors

    Publication Year: 2004, Page(s): 1
    IEEE is not the copyright holder of this material | PDF file iconPDF (268 KB)
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Aims & Scope

Journal of Systems Engineering and Electronics reports the latest developments and achievements in both theoretical and practical aspects of systems engineering, electronics and related research areas.

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Meet Our Editors

Editor-in-Chief
Professor Rong Shi
Journal of Systems Engineering and Electronics