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Journal of Systems Engineering and Electronics

Issue 4 • Date Dec. 2001

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Displaying Results 1 - 19 of 19
  • [Front cover]

    Publication Year: 2001, Page(s): c1
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    Freely Available from IEEE
  • Copyright

    Publication Year: 2001, Page(s): 1
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  • Contents

    Publication Year: 2001, Page(s): 1
    IEEE is not the copyright holder of this material | PDF file iconPDF (413 KB)
    Freely Available from IEEE
  • Po analysis for RCS of nonorthogonal dihedral corner reflectors coated by RAM

    Publication Year: 2001, Page(s):1 - 6
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1166 KB)

    The backscattering radar cross section (RCS) of nonorthogonal dihedral corner reflectors coated by RAM (radar absorbing materials) formulated the method of PO (physical optics), where singly. doubly, and triply reflected contributions are considered. The final expressions are analytical and allow for the incidence nonperpendicular to the fold axis of reflector. results are compared with ones of Mo... View full abstract»

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  • An algorithm for ship wake detection from the SAR image using the Radon transform and morphological image processing

    Publication Year: 2001, Page(s):7 - 12
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1414 KB)

    Using the Radon transform and morphological image processing, an algorithm for ship's wake detection in the SAR (synthetic aperture radar) image is developed. Being manipulated in the Radon space to invert the gray-level and binary images, the linear texture of ship wake in oceanic clutter can be well detected. It has been applied to the automatic detection of a moving ship from the SEASAT SAR ima... View full abstract»

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  • A simple superresolution approach of multipath delay profiles measured by PN correlation method

    Publication Year: 2001, Page(s):13 - 16
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (633 KB)

    Time resolution of multipath delay profiles measured by using autocorrelation of pseudonoise (PN) code sequence is generally limited by the chip rate of the PN code sequence. In this paper, we propose a simple method to improve the time resolution of delay profiles measured by the PN correlation method. Effectiveness of this method is demonstrated by indoor wireless propagation experiments. View full abstract»

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  • Study on transformer magnetic biasing control method for AC power supplies

    Publication Year: 2001, Page(s):17 - 22
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1108 KB)

    This paper presents a novel transformer magnetic biasing control method for high-power high-performance AC power supplies. Serious consequences due to magnetic biasing and several methods to overcome magnetic biasing are first discussed. The causes of the transformer magnetic biasing are then analyzed in detail. The proposed method is based on a high-pass filter inserted in the forward path and th... View full abstract»

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  • Multi-threat real-time separating system

    Publication Year: 2001, Page(s):23 - 27
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (874 KB)

    This paper describes a multi-threat real-time separating system for broadband anti-radiation missile seeker. It presents a method, with a dual-port memory as comparer, to perform PF and PW hardware real-time separation and to determine the time-of-arrival (TOA) by use of sequential difference histogram (SDIF). The method has been applied to practice, which has achieved good results. View full abstract»

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  • Quantifying the indirect benefits of transport infrastructures and value capture ways in transportation

    Publication Year: 2001, Page(s):28 - 36
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1829 KB)

    Urban transportation is closely related to land use. The changes transportation cost and accessibility have a direct impact on land use and land prices. Land exploitation and land use play role of redistributing traffic flow in the urban districts. Real property values are regarded as a sole comprehensive index representing all the benefits generated by transport investment. We have applied the th... View full abstract»

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  • New explorations for decision trees

    Publication Year: 2001, Page(s):37 - 40
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (909 KB)

    Traditionally, the decision tree method. is defined and used. for. finding the optimal solution of a Bayesian decision problem. And it is difficult to use the decision tree method to find the sub-optimal solution, not to mention to rank alternatives. This paper discusses how to use the decision tree method for the alternative selecting and ranking. A practical case study is given to illustrate the... View full abstract»

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  • Hierarchical control for large-scale systems

    Publication Year: 2001, Page(s):41 - 45
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (899 KB)

    A class of large-scale systems, where the overall objective function is a nonlinear function of performance index of each subsystem, is investigated in this paper. This type of large-scale control problem is non-separable in the sense of conventional hierarchical control. Hierarchical control is extended in the paper to large-scale non-separable control problems, where multiobjective optimization ... View full abstract»

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  • Robust absolute stability of general interval Lur'e type nonlinear control systems

    Publication Year: 2001, Page(s):46 - 52
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (987 KB)

    In this paper, Lyapunov function method to study the robust stability of general interval Lur'e type nonlinear control systems. As a result, algebraically sufficient conditions with interval matrix inequality form are obtained for the general interval Lur'e type nonlinear control systems, thus the relationship between the stability of symmetrical interval matrix and the robust absolute stability o... View full abstract»

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  • Speed-sensorless control using Elman neural network

    Publication Year: 2001, Page(s):53 - 58
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (982 KB)

    This paper describes a modified speed-sensorless control for induction motor (IM) based on space vector pulse width modulation and neural network. An Elman ANN method to identify the IM speed is proposed, with IM parameters employed as associated elements. The BP algorithm is used to provide an adaptive estimation of the motor speed. The effectiveness of the proposed method is verified by simulati... View full abstract»

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  • A new criterion for stability of large-scale systems with delay

    Publication Year: 2001, Page(s):59 - 65
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1115 KB)

    A simple criterion for delay-independent stability of large-scale linear time-varying systems is deduced by employing a type of Lyapunov function. The notable features of the results in this paper are its simplicity and efficiency in testing the stability large-scale linear time-varying systems. Some illustrative examples are given to demonstrate the advantages of the obtained results over those i... View full abstract»

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  • Study of a new method of tracking control with zero steady-state error on very-low frequency

    Publication Year: 2001, Page(s):66 - 70
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (818 KB)

    A servo control system is prone to low speed and unsteadiness duriug very-law-frequency follow-up. A design method of feedforward control based on intelligent controller is foward. Simulation and test results Show that the method has excellent control characteristics and strong robustness, which meets the servo control needs with very-low frequency. View full abstract»

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  • Robust H stabilization of uncertain linear time-delay system with delayed/undelayed state feedback controllers

    Publication Year: 2001, Page(s):71 - 76
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (946 KB)

    This paper focuses on the H controller for linear systems with time-varying delays and normbounded parameter perturbations in the system state and On the existence of delayedjundelayed full state feedback controllers, we present a sufficient condition and give design method the form of Riccati equation. The controller can not stabilize the time-delay system, but make the H... View full abstract»

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  • Error analysis in frequency domain for linear multipass algorithms

    Publication Year: 2001, Page(s):77 - 84
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1168 KB)

    Error analysis methods in frequency domain are developed in this paper for determining the characteristic root and transfer function errors when the linear multipass algorithms are used to solve linear differential equations the relation between the local truncation error in time domain and the error in frequency domain is established, which is the basis for developing the error estimation methods... View full abstract»

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  • A jave-based multi-tier distributed object enterprise computing model

    Publication Year: 2001, Page(s):85 - 90
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1060 KB)

    In this paper, we adopt Java platform to achieve a multi-tier distributed object enterprise computing model which provides an open, flexible, robust and cross-platform standard for enterprise applications of new generation. In addition to this model, we define remote server objects as session or entity objects according to their roles in a distributed application server, which separate information... View full abstract»

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  • A novel induction algorithm for DM

    Publication Year: 2001, Page(s):91 - 97
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1124 KB)

    DM usually means an efficient knowledge discovery from database, and the immune algorithm is a biological theory-based and global searching algorithm. A novel induction algorithm is proposed here which integrates a power of individual immunity and an evolutionary mechanism of population. This algorithm does not take great care of discovering some classifying information, but unknown knowledge or a... 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.

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Meet Our Editors

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