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Journal of Systems Engineering and Electronics

Issue 5 • Date Oct. 2009

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Displaying Results 1 - 25 of 39
  • [Front cover]

    Publication Year: 2009, Page(s): c1
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  • Copyright page

    Publication Year: 2009, Page(s): 1
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  • Call for papers: International conference on space information technology

    Publication Year: 2009, Page(s): 1
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  • Instructions for authors

    Publication Year: 2009, Page(s): 1
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  • Contents

    Publication Year: 2009, Page(s):1 - 2
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  • Adaptive compensating method for Doppler frequency shift using LMS and phase estimation

    Publication Year: 2009, Page(s):913 - 919
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1184 KB)

    The novel compensating method directly demodulates the signals without the carrier recovery processes, in which the carrier with original modulation frequency is used as the local coherent carrier. In this way, the phase offsets due to frequency shift are linear. Based on this premise, the compensation processes are: firstly, the phase offsets between the base band neighbor-symbols after clock rec... View full abstract»

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  • Performance analysis and threshold selection for cooperative multiple packet reception based on NDMA

    Publication Year: 2009, Page(s):920 - 928
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1436 KB)

    To accurately assess the performance of cooperative multiple packet reception (MPR) based on network-assisted diversity multiple access (NDMA), non-ideal collision detection is introduced in ALLIANCES (ALLow improved access in the network via cooperation and energy savings). To provide a unified analysis framework, the length of cooperative transmission epoch is fixed to the detected collision ord... View full abstract»

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  • Knowledge-based bridge detection from SAR images

    Publication Year: 2009, Page(s):929 - 936
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1937 KB)

    A utomatic bridge detection is an important application of SAR images. Differed from the classical CFAR method, a new knowledge-based bridge detection approach is proposed. The method not only uses the backscattering intensity difference between targets and background but also applies the contextual information and spatial relationship between objects. According to bridges' special characteristics... View full abstract»

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  • Narrowband time delay estimation based on correlation coefficient

    Publication Year: 2009, Page(s):937 - 942
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (954 KB)

    The problems of time delay estimation of narrowband signals are presented. The disadvantages of the existing algorithms are analyzed, and a new narrowband time delay estimating algorithm based on correlation coefficient is proposed. The original time delay information is transfered into the delay between the autocorrelation and cross-correlation function, and the precise estimating result by wave-... View full abstract»

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  • Design of complex FIR filters with arbitrary magnitude and group delay responses

    Publication Year: 2009, Page(s):942 - 947
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (969 KB)

    To design approximately linear-phase complex coefficient finite impulse response (FIR) digital filters with arbitrary magnitude and group delay responses, a novel neural network approach is studied. The approach is based on a batch back-propagation neural network algorithm by directly minimizing the real magnitude error and phase error from the linear-phase to obtain the filter's coefficients. The... View full abstract»

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  • Improved direct P code acquisition technique

    Publication Year: 2009, Page(s):948 - 953
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (899 KB)

    P code direct acquisition is an important technology in satellite navigation system. As the P code has a long period, it is hard to directly acquire. The traditional average method can process multiple code phases in a time to shorten the acquisition time. But with the increase of average phase error of the input signal and the local code, the correlation signal-to-noise ratio (SNR) loss increases... View full abstract»

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  • GPS short-delay multipath estimation and mitigation based on least square method

    Publication Year: 2009, Page(s):954 - 961
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1311 KB)

    The GPS multipath signal model is presented, which indicates that the coherent DLL outputs in multipath environment are the convolution between the ideal DLL outputs and the channel responses. So the channel responses can be estimated by a least square method using the observed curve of the DLL discriminator. In terms of the estimated multipath channels, two multipath mitigation methods are discus... View full abstract»

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  • Noise amplitude modulation jamming signal suppression based on weighted-matching pursuit

    Publication Year: 2009, Page(s):962 - 967
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1088 KB)

    To suppress noise amplitude modulation jamming in a single-antenna radar system, a new method based on weighted-matching pursuit (WMP) algorithm is proposed, which can achieve underdetermined blind sources separation of the jamming and the target echo from the jammed mixture in the single channel of the receiver. Firstly, the presented method utilizes a prior information about the differences betw... View full abstract»

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  • New computing method of weighted coefficients for tracking a maneuvering target using PDAF in the presence of clutter

    Publication Year: 2009, Page(s):968 - 973
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1005 KB)

    To avoid or reduce the influence of unpredictable motion mode on data association, a new computing method of weighted coefficients of measurements for PDAF is presented in which it is assumed that the current turn rate of a maneuvering target changes within a limited range and its turn may be in arbitrary direction during data association. Thus, the predicted center for computing the weighted coef... View full abstract»

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  • Minimal feasible sets in variable resource constrained projects

    Publication Year: 2009, Page(s):974 - 984
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (2567 KB)

    To determine the reasonable resource dependent relations between activities for the purpose of exactly computing the total floats and the free floats of activities, correctly identifying critical activities and critical sequences in a project schedule with variable resource constraints, the concept of the minimal feasible set (MFS) is proposed and the properties of MFS are discussed. The methods t... View full abstract»

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  • Study on the extending multi-attribute decision model of grey target

    Publication Year: 2009, Page(s):985 - 991
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1171 KB)

    Based on the distance of interval numbers and the two-stage decision methods, this paper expands the decision model of grey target into some situation under which the decision information and target weights are the interval numbers at the same time. It also gives the optimization method of weights in the grey target. We get the optimum coordinated vector utilizing the combination assigning method,... View full abstract»

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  • Modeling of cognitive framework in time-stressed decision making

    Publication Year: 2009, Page(s):992 - 1000
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (2152 KB)

    An approach for modeling a human cognitive framework in time-stressed decision making is presented. The recognitive and metacognitive processes that represent the cognitive framework are modeled by the colored Petri nets (CPNs). A structural and behavioral analysis method is adopted to obtain the static and dynamic property used to verify the CPNs model of the cognitive framework. Finally, an exam... View full abstract»

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  • Entropy-based procedures for intuitionistic fuzzy multiple attribute decision making

    Publication Year: 2009, Page(s):1001 - 1011
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (2103 KB)

    The class of multiple attribute decision making (MADM) problems is studied, where the attribute values are intuitionistic fuzzy numbers, and the information about attribute weights is completely unknown. A score function is first used to calculate the score of each attribute value and a score matrix is constructed, and then it is transformed into a normalized score matrix. Based on the normalized ... View full abstract»

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  • Quantum-inspired ant algorithm for knapsack problems

    Publication Year: 2009, Page(s):1012 - 1016
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (849 KB)

    The knapsack problem is a well-known combinatorial optimization problem which has been proved to be NP-hard. This paper proposes a new algorithm called quantum-inspired ant algorithm (QAA) to solve the knapsack problem. QAA takes the advantage of the principles in quantum computing, such as qubit, quantum gate, and quantum superposition of states, to get more probabilistic-based status with small ... View full abstract»

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  • Study of testability measurement method for equipment based on Bayesian network model

    Publication Year: 2009, Page(s):1017 - 1023
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1214 KB)

    To analyze and evaluate the testability design of equipment, a testability analysis method based on Bayesian network inference model is proposed in the paper. The model can adequately apply testability information and many uncertainty information of design and maintenance process, so it can analyze testability by and large from Bayesian inference. The detailed procedure to analyze and evaluate tes... View full abstract»

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  • Robust fault detection for a class of nonlinear network control system with communication delay

    Publication Year: 2009, Page(s):1024 - 1030
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1015 KB)

    To investigate a class of nonlinear network control system, a robust fault diagnosis method is presented based on the robust state observer. To access the objective that the designed robust filter is maximally tolerant to disturbances and sensitive to fault, the robustness and stability properties of the fault diagnosis scheme are established rigorously. Using the residual vector, a fault tolerant... View full abstract»

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  • Robust fault detection and diagnosis for uncertain nonlinear systems

    Publication Year: 2009, Page(s):1031 - 1036
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1008 KB)

    This paper considers robust fault detection and diagnosis for input uncertain nonlinear systems. It proposes a multi-objective fault detection criterion so that the fault residual is sensitive to the fault but insensitive to the uncertainty as much as possible. Then the paper solves the proposed criterion by maximizing the smallest singular value of the transformation from faults to fault detectio... View full abstract»

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  • Admissibility analysis and control synthesis for switched linear singular systems

    Publication Year: 2009, Page(s):1037 - 1044
    Cited by:  Papers (4)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1257 KB)

    The problem of admissibility analysis and control synthesis of discrete-time switched linear singular (SLS) systems for arbitrary switching laws is solved. By using the switched Lyapunov function approach, some new sufficient conditions under which the SLS system is admissible for arbitrary switching laws are derived in terms of linear matrix inequalities (LMls). Based on the admissibility results... View full abstract»

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  • Robust passive control for discrete-time T-S fuzzy systems with delays

    Publication Year: 2009, Page(s):1045 - 1051
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (960 KB)

    This article deals with the robust stability analysis and passivity of uncertain discrete-time TakagiSugeno (T-S) fuzzy systems with time delays. The T-S fuzzy model with parametric uncertainties can approximate nonlinear uncertain systems at any precision. A sufficient condition on the existence of robust passive controller is established based on the Lyapunov stability theory. With the help of l... View full abstract»

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  • Novel method of improving the alignment accuracy of SINS on revolving mounting base

    Publication Year: 2009, Page(s):1052 - 1057
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1012 KB)

    In the process of initial alignment for a strapdown inertial navigation system (SINS) on a stationary base, the east gyro drift rate is an important factor affecting the alignment accuracy of the azimuth misalignment angle. When the Kalman filtering algorithm is adopted in initial alignment, it yields a constant error in the estimation of the azimuth misalignment angle because the east gyro drift ... 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