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Journal of Systems Engineering and Electronics

Issue 4 • Date Dec. 2003

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Displaying Results 1 - 20 of 20
  • [Front cover]

    Publication Year: 2003, Page(s): c1
    IEEE is not the copyright holder of this material | PDF file iconPDF (446 KB)
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  • Copyright page

    Publication Year: 2003, Page(s): 1
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  • Contents

    Publication Year: 2003, Page(s): 1
    IEEE is not the copyright holder of this material | PDF file iconPDF (425 KB)
    Freely Available from IEEE
  • Shortest path routing algorithm based on chaotic neural network

    Publication Year: 2003, Page(s):1 - 6
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1368 KB)

    A shortest path routing algorithm based on transient chaotic neural network is proposed in this paper. Compared with previous models adopting Hopfield neural network, this algorithm has a higher ability to overcome the local minimum, and achieves a better performance. By introducing a special post-processing technique for the output matrixes, our algorithm can obtain an optimal solution with a hig... View full abstract»

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  • Method for risky multiobjective group decision-making and its application

    Publication Year: 2003, Page(s):7 - 12
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1322 KB)

    The nlultio bjective group decision-making problem under risk is common in reality. This paper focuses on the study about risky multiobjective group decision-making problem where the index value is not certain. We give indexes classifying method and index normalizing formula of this type problem. By building objective function that minimizes general weighted distance from every alternative to the ... View full abstract»

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  • Modeling of non-coherent sequential acquisition process for DS/SS signals

    Publication Year: 2003, Page(s):13 - 19
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1317 KB)

    A modified non-coherent sequential detection decision logic based on continuous accumulation to achieve fast PN code acquisition is proposed. To simplify the design and analysis. the equivalent relationship between the likelihood ratio of the current sample and that of all the previous samples is deduced. The scheme is proved to be an optimum sequential detection under certain assumptions. Because... View full abstract»

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  • Pragmatic approach to adaptive turbo coded modulation

    Publication Year: 2003, Page(s):20 - 24
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1079 KB)

    This paper presents a pragmatic adaptive scheme for TuCM over slowly fading channels. The adaptive scheme employs a single turbo coded modulator composed of a variable-rate turbo encoder and a variable-rate variable-power MQAM for all fading regions, so it has an acceptable complexity to implement. The optimal adaptive TuCM scheme is determined subject to various system constraints. Simulations ha... View full abstract»

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  • Dynamic characteristics of inter-satellite links in LEO networks

    Publication Year: 2003, Page(s):25 - 29
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1132 KB)

    To establish an efficient inter-satellite link (ISL) in an LEC) network, the effect of geometric characteristics of ISL on the ISLs and the devices on the LEO satellite should be examined. Because of the continuous movement of the LEO satellite, the time-varying behaviours of the ISL's geometric characrersistics continuously change with the change of the satellite's position on the orbit. These dy... View full abstract»

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  • Study on the generation of ultra-wideband (UWB) high power microwave

    Publication Year: 2003, Page(s):30 - 33
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1490 KB)

    The experimental study of ultra-wideband (UWB) technology. its generation and on-line measurement are presented. An experimental repetitive UWB system is designed, manufactured. and tested. High-pressure spark gap switch and its components, as well as oil spark gap switch are studied experimentally on the system. Experimental results indicate that the system operates at a 200 pps repetitive rate w... View full abstract»

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  • Componentwise asymptotic stability of continuous-time interval system

    Publication Year: 2003, Page(s):34 - 38
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (996 KB)

    A special type of asymptotic (exponential)stability namely componentwise asymptotic (exponential) stability for the continuous-time interval system is investigated. A set-valued map that represents the constraint of the state of the system is defined. And, by applying The viability theory of differential equation. sufficient and necessary conditions for the componentwise asymptotical (exponential)... View full abstract»

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  • Global convergence of adaptive generalized predictive controller based on least squares algorithm

    Publication Year: 2003, Page(s):39 - 48
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1425 KB)

    Some papers on stochastic adaptive control schemes have established convergence algorithm using a leastsquares parameters. With the popular application of GPC, global convergence has become a key problem in automatic control theory. However, now global convergence of GPC has not been established for algorithms in computing a least squares iteration. A generalized modeof adaptive generalized predic... View full abstract»

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  • Online delay-evaluation approach in networked control systems

    Publication Year: 2003, Page(s):49 - 54
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1277 KB)

    This paper presents an online evaluation approach of time delays for networked control systems (NCS), which characterizes the time delays without any synchronized clock in the network and any assumptions of time delays. With this approach, an optimal control scheme based on the approach is designed to achieve the desired performance despite the uncertain delays in the system. The experimental resu... View full abstract»

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  • Study on the robot robust adaptive control based on neural networks

    Publication Year: 2003, Page(s):55 - 58
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (958 KB)

    Force control based on neural networks is presented. Under the framework of hybrid control, an RBF neural network is used to compensate for all the uncertainties from robot dynamics and unknown environment first. The technique will improve the adaptability to environment stiffness when the end-effector is in contact with the environment, and does not require any a priori knowledge on the upper bou... View full abstract»

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  • Design and application of an intelligent agent for web information discovery

    Publication Year: 2003, Page(s):59 - 68
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (5288 KB)

    With the propagation of applications on the internet, the internet has become a great information source which supplies users with valuable information. But it is hard for users to quickly acquire the right information on the web. This paper an intelligent agent for internet applications to retrieve and extract web information under user's guidance. The intelligent agent is made up of a retrieval ... View full abstract»

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  • Study on the medical image distributed dynamic processing method

    Publication Year: 2003, Page(s):69 - 76
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1977 KB)

    To meet the challenge of implementing rapidly advanced, time-consuming medical image processing algorithms, it is necessary to develop a medical image processing technology to process a 2D or 3D medical image dynamically on the web. But in a premier system, only static image processing can be provided with the limitation of web technology. The development of Java and CORBA (common object request b... View full abstract»

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  • State fusion estimation for multilevel multisensor system

    Publication Year: 2003, Page(s):77 - 83
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1162 KB)

    Based on the single sensor Kalman filtering equations, this paper presents two-level and three-level optimal centralized and distributed estimation algorithms for hierarchical multisensor systems. The solution shows that when the correlated matrix, the mean of noise, the control input, and the measurement error are all zero, the result in this paper turns out to be the standard algorithm discussed... View full abstract»

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  • Pseudo-random sequences generator based on discrete hyperchaotic systems

    Publication Year: 2003, Page(s):84 - 89
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1163 KB)

    We first design a discrete hyperchaotic system via piecewise linear state feedback. The states of the closed loop system are locally expanding in two directions but absolutely bounded on the whole, which implies hyperchaos. Then, we use three suchlike hyperchaotic systems with different feedback gain matrices to design a pseudo-random sequence generator (PRSG). Through a threshold function, three ... View full abstract»

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  • New hybrid genetic algorithm for vertex cover problems

    Publication Year: 2003, Page(s):90 - 94
    Cited by:  Papers (2)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1393 KB)

    This paper presents a new hybrid genetic algorithm for the vertex cover problems in which scan-repair and local improvement techniques are used for local optimization. With the hybrid approach, genetic algorithms are used to perform global exploration in a population, while neighborhood search methods are used to perform local exploitation around the chromosomes. The experimental results indicate ... View full abstract»

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  • Multiple-attribute and multilevel synthetic evaluation model and its application

    Publication Year: 2003, Page(s):95 - 98
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (750 KB)

    On the basis of analyzing the flaws of present multiple-attribute and multilevel evaluation methods, concerning the problem of characteristics of the multiple-attribute and multilevel system's appraisal and the particular emphasis onthe respective attributes in the evaluation process, as well as its relevance to the environment, an optimal attribute systemis proposed, and the multiplicative analyt... View full abstract»

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  • Chaotic neural network technique for “0–1” programming problems

    Publication Year: 2003, Page(s):99 - 105
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1389 KB)

    0–1 programming is a special case of the integer programming, which is commonly encountered in many optimization problems. Neural network and its general energy function are presented for 0–1 optimization problem. Then, the 0–1 optimization problems are solved by a neural network model with transient chaotic dynamics (TCNN). Numerical simulations of two typical 0–1 opti... View full abstract»

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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.

Full Aims & Scope

Meet Our Editors

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