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Volume 18 Issue 6
 
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Article Navigation >  Journal of Unmanned Undersea Systems  > 2010  >  18(6): 435-439
XIONG Xin, ZHANG Xin-hua, HUANG Guan, LU Hai-jie, LAN Ying. A Passive Localization Method Using Near-field MVDR Focused Beamforming[J]. Journal of Unmanned Undersea Systems, 2010, 18(6): 435-439. doi: 10.11993/j.issn.1673-1948.2010.06.009
Citation: XIONG Xin, ZHANG Xin-hua, HUANG Guan, LU Hai-jie, LAN Ying. A Passive Localization Method Using Near-field MVDR Focused Beamforming[J]. Journal of Unmanned Undersea Systems, 2010, 18(6): 435-439. doi: 10.11993/j.issn.1673-1948.2010.06.009
shu

A Passive Localization Method Using Near-field MVDR Focused Beamforming

doi: 10.11993/j.issn.1673-1948.2010.06.009
  • 1.

    Research Center of Signal Information, Dalian Naval Academy, Dalian, 116018 China

  • 2.

    No. 23 Team of Student Brigade, Dalian Naval Academy, Dalian 116018, China

  • Received Date: 2010-04-03
  • Rev Recd Date: 2010-06-22
  • Publish Date: 2010-12-30
    Abstract
  • This paper systematically researches the localization performance of the minimum variance distortionless response(MVDR) focused beamforming method and the influences of localization performance caused by some parameters in detail. We analyze the model of the receiving signals of linear array in near-field environment, and deduce the localization principles of the conventional focused beamforming method and MVDR focused beamforming method. We compare the localization performances of these two methods by simulation, and the localization performance of the MVDR focused beamforming method in the case of different array element spacings and target ranges. Simulation result indicates that, compared to the conventional focused beamforming method, the MVDR focused beamforming method can improve the resolution and reduce the influence of “aliasing” with smoother background and lower side-lobe level. To obtain better location effect, target must be in near-field position.

     

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    • References(6)
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    Shi Jie. Radiated Noise Sources Near-field Location Based on MVDR Focused Beamforming[J]. Dalian Maritime University Journal, 2008, 34(3): 55-58.
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