Application of Modified Space-Time Adaptive Processing in Sonar

doi:10.3969/j.issn.1000-1093.2012.08.008

Acta Armamentarii ›› 2012, Vol. 33 ›› Issue (8): 944-950.doi: 10.3969/j.issn.1000-1093.2012.08.008

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Application of Modified Space-Time Adaptive Processing in Sonar

LU Wei^1,2, WANG Zhi-jie¹, LI Jian-chen^1,2, WANG Ming-zhou^1,2, HU Qiao^1,2, YANG Bao-min^1,2

(1. The 705th Research Institute, China Shipbuilding Industry Corporation, Xi’an 710075, Shaanxi, China;2. Science and Technology on Underwater Information and Control Laboratory, The 705th Research Institute,China Shipbuilding Industry Corporation, Xi’an 710075, Shaanxi, China)

Received:2011-11-18 Revised:2011-11-18 Online:2014-03-04
Contact: LU Wei E-mail:lv020002@163.com

Abstract

Abstract: In order to solve the problem of anti-reverberation in shallow water, a modified method of space-time adaptive processing (STAP) for sonar was proposed. Firstly, the principle of STAP was analyzed according to the echo model of radar. Secondly, comparing the echo model of sonar with radar, the space-time coupling guiding vector was used in space-time processing. Finally, the proposed method was applied in optimization processing and object detection. The simulation results illustrate that the modified method is beneficial to underwater object detection, and the application of space-time coupling guiding vector can increase the accuracy of the direction estimation of targets.

Key words: information processing technique, reverberation, space-time adaptive processing, echo signal model, space-time coupling term

CLC Number:

TB566

LU Wei, WANG Zhi-jie, LI Jian-chen, WANG Ming-zhou, HU Qiao, YANG Bao-min. Application of Modified Space-Time Adaptive Processing in Sonar[J]. Acta Armamentarii, 2012, 33(8): 944-950.

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Application of Modified Space-Time Adaptive Processing in Sonar

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