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Journal of Systems Engineering and Electronics

Issue 4 • Date Dec. 2007

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Displaying Results 1 - 25 of 43
  • [Front cover]

    Publication Year: 2007, Page(s): c1
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  • Copyright page

    Publication Year: 2007, Page(s): 1
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  • Instructions for authors

    Publication Year: 2007, Page(s): 1
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    Freely Available from IEEE
  • Contents

    Publication Year: 2007, Page(s):1 - 2
    IEEE is not the copyright holder of this material | PDF file iconPDF (798 KB)
    Freely Available from IEEE
  • New multi-layer data correlation algorithm for multi-passive-sensor location system

    Publication Year: 2007, Page(s):667 - 672
    Cited by:  Patents (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1178 KB)

    Under the scenario of dense targets in clutter, a multi-layer optimal data correlation algorithm is proposed. This algorithm eliminates a large number of false location points from the assignment process by rough correlations before we calculate the correlation cost, so it avoids the operations for the target state estimate and the calculation of the correlation cost for the false correlation sets... View full abstract»

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  • Characterizing Ultra-wide Band indoor line-of-sight wireless channel

    Publication Year: 2007, Page(s):673 - 678
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1370 KB)

    By exploring the deterministic characteristics of the measurement data, a new propagation model with two deterministic clusters and stochastic arriving rays within each cluster is proposed. When considering the cumulative distribution function (CDF) of the three key channel statistics, the proposed model fits the measurement data better than SV /IEEE 802.15.3, a model which is known as a standard ... View full abstract»

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  • Analysis of wire antennas mounted on large perfectly conducting platforms using MLFMA

    Publication Year: 2007, Page(s):679 - 684
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1220 KB)

    The electric field integral equation (EFIE) combined with the multilevel fast multipole algorithm (MLFMA) is applied to analyze the radiation and impedance properties of wire antennas mounted on complex conducting platforms to realize fast, accurate solutions. Wire, surface and junction basis functions are used to model the current distribution on the object. Application of MLFMA reduces memory re... View full abstract»

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  • Simulation research on scattering characteristics by complex targets

    Publication Year: 2007, Page(s):685 - 691
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (2076 KB)

    A simulation approach based on a full-wave numerical method is presented to study electromagnetic characteristics by complex targets. How to validate simulation results is considered thoroughly under no analytical and measured data, where a double-check criterion is designed for our simulation approach. As an example, the scattering of F-117A is studied by using our simulation approach under all p... View full abstract»

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  • Blind channel estimation for redundant precoded OFDM systems

    Publication Year: 2007, Page(s):692 - 697
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (990 KB)

    Considering that channel estimation can play a crucial role in coherent detection of the information symbols in each data block, a blind channel estimation approach is proposed for redundant precoded orthogonal frequency-division multiplexing (OFDM) systems. A redundant linear frequency-domain precoder is applied to each pair of blocks before they enter the OFDM system. Because of the introduced s... View full abstract»

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  • New chaos-based encryption scheme for digital sequence

    Publication Year: 2007, Page(s):698 - 703
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1139 KB)

    To enhance the anti-breaking performance of privacy information, this article proposes a new encryption method utilizing the leaping peculiarity of the periodic orbits of chaos systems. This method maps the secret sequence to several chaos periodic orbits, and a short sequence obtained by evolving the system parameters of the periodic orbits in another nonlinear system will be the key to reconstru... View full abstract»

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  • Joint estimation of DOA, frequency, and polarization based on cumulants and UCA

    Publication Year: 2007, Page(s):704 - 709
    Cited by:  Papers (3)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (962 KB)

    A joint estimation algorithm of direction of arrival (DOA), frequency, and polarization, based on fourth-order cumulants and uniform circular array (UCA) of trimmed vector sensors is presented for narrowband non-Gaussian signals. The proposed approach, which is suitable for applications in arbitrary Gaussian noise environments, gives a closed-form representation of the estimated parameters, withou... View full abstract»

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  • Study of ultra-wideband radar signals-generated technology using two-channel signal generator

    Publication Year: 2007, Page(s):710 - 715
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1040 KB)

    Synthesis of ultra-wideband (UWB) linear frequency modulation radar signals is a very important technology for microwave imaging, target identification and detection of low radar-cross-section (RCS) targets. A new method of UWB radar signals generation with two-channel signal generator is presented. The realization structure is given; the principle and errors of signal synthesis are analyzed. At t... View full abstract»

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  • Simplified iterative algorithm for OFDM phase noise mitigation

    Publication Year: 2007, Page(s):716 - 720
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (836 KB)

    OFDM has been widely adopted in several communication systems. However, OFDM systems are very sensitive to the phase noise, which causes the CPE (common phase error) and ICI (inter-carrier interference), and thus degrades the system performance significantly. Based on the IEEE 802.11a standard, a simplified iterative phase noise mitigation algorithm is proposed. The proposed algorithm has very low... View full abstract»

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  • Design of continuous long slot leaky-wave antenna for millimeter wave application

    Publication Year: 2007, Page(s):721 - 725
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (768 KB)

    A simple and efficient design scheme of the continuous long slot leaky-wave antenna is developed. The key steps involved in the scheme are summarized. First, the cut-off frequencies of slot waveguides with different slot offsets are obtained by 3D finite-difference time-domain (FDTD) method. Second, the attenuation function αra is estimated by the aperture distribution, and the a... View full abstract»

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  • New hybridization of PO, SBR, and MoM for scattering by large complex conducting objects

    Publication Year: 2007, Page(s):726 - 730
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1204 KB)

    As a marked extension of the traditional MoM-PO (method of moment-physical optics) hybrid method, a new hybridization of PO, SBR, and MoM (MoM-SBR/PO) is presented to calculate the multi-reflection contribution in the PO region efficiently by introducing the method of SBR based on RDN notion, which avoids the time-consuming iterative procedure and the choice of proper Green's function. As compared... View full abstract»

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  • Utility function based fair data scheduling algorithm for OFDM wireless network

    Publication Year: 2007, Page(s):731 - 738
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1455 KB)

    A system model is formulated as the maximization of a total utility function to achieve fair downlink data scheduling in multiuser orthogonal frequency division multiplexing (OFDM) wireless networks. A dynamic subcarrier allocation algorithm (DSAA) is proposed, to optimize the system model. The subcarrier allocation decision is made by the proposed DSAA according to the maximum value of total util... View full abstract»

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  • Estimation of detection threshold in multiple ship target situations with HF ground wave radar

    Publication Year: 2007, Page(s):739 - 744
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1140 KB)

    A credible method of calculating the detection threshold is presented for the multiple target situations, which appear frequently in the lower Doppler velocity region during the surveillance of sea with HF ground wave radar. This method defines a whole-peak-outlier elimination (WPOE) criterion, which is based on in-peak-samples correlation of each target echo spectra, to trim off the target signal... View full abstract»

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  • Scale transform algorithm used in FMCW SAR data processing

    Publication Year: 2007, Page(s):745 - 750
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1138 KB)

    The frequency-modulated continuous-wave (FMCW) synthetic aperture radar (SAR) is a light-weight, cost-effective, high-resolution imaging radar, which is suitable for a small flight platform. The signal model is derived for FMCW SAR used in unmanned aerial vehicles (UAV) reconnaissance and remote sensing. An appropriate algorithm is proposed. The algorithm performs the range cell migration correcti... View full abstract»

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  • Quantified simulation research on harmonious factors in the leadership teams of aerospace enterprise group

    Publication Year: 2007, Page(s):751 - 757
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1853 KB)

    A brief account of basic connotation and evaluation indexes system of harmonious leadership teams is given. On this basis, a simulation model is built by using the ARENA simulation software and the quantified simulation is carried out for the factors of harmonization of aerospace enterprise leadership teams. Moreover, by taking the characteristics of aerospace enterprise leadership teams into cons... View full abstract»

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  • Decentralized and overall condition monitoring system for large-scale mobile and complex equipment

    Publication Year: 2007, Page(s):758 - 763
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1275 KB)

    It is an urgent project to realize online and overall condition monitoring and timely fault diagnosis for large-scale mobile and complex equipment. Moreover, most of the existing large-scale complex equipment has quite insufficient accessibility of examination, although it still has quite a long service life. The decentralized and overall condition monitoring, as a new concept, is proposed from th... View full abstract»

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  • F-generation law and recognition of system law

    Publication Year: 2007, Page(s):764 - 768
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (914 KB)

    If a system is not disturbed (or invaded) by some law, there is no doubt that each system will move according to the expected law and keep stable. Although such a fact often appears, some unknown law breaks into the system and leads it into turbulence. Using function one direction S-rough sets, this article gives the concept of the F-generation law in the system, the generation model of the F-gene... View full abstract»

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  • SVR mathematical model and methods for sale prediction

    Publication Year: 2007, Page(s):769 - 773
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (883 KB)

    Sale prediction plays a significant role in business management. By using support vector machine Regression (∊-SVR), a method using to predict sale is illustrated. It takes historical data and current context data as inputs and presents results, i.e. sale tendency in the future and the forecasting sales, according to the user's specification of accuracy and time cycles. Some practical data ... View full abstract»

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  • Novel combinatorial algorithm for the problems of fuzzy grey multi-attribute group decision making

    Publication Year: 2007, Page(s):774 - 780
    Cited by:  Papers (5)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1231 KB)

    To study the fuzzy and grey information in the problems of multi-attribute group decision making, the basic concepts of both fuzzy grey numbers and grey interval numbers are given firstly, then a new model of fuzzy grey multi-attribute group decision making based on the theories of fuzzy mathematics and grey system is presented. Furthermore, the grey interval relative degree and deviation degree i... View full abstract»

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  • Analysis method on shoot precision of weapon in small-sample case

    Publication Year: 2007, Page(s):781 - 784
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (528 KB)

    Because of limits of cost, in general, the test data of weapons are shortness. It is always an important topic that to gain scientific results of weapon performance analyses in small-sample case. Based on the analysis of distribution function characteristics and grey mathematics, a weighting grey method in small-sample case is presented. According to the analysis of test data of a weapon, it is pr... View full abstract»

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  • Multi-agent cooperative intrusion response in mobile adhoc networks

    Publication Year: 2007, Page(s):785 - 794
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1960 KB)

    The nature of adhoc networks makes them vulnerable to security attacks. Many security technologies such as intrusion prevention and intrusion detection are passive in response to intrusions in that their countermeasures are only to protect the networks, and there is no automated network-wide counteraction against detected intrusions. the architecture of cooperation intrusion response based multi-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