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声纳输出的弱目标信息提取方法仿真分析
引用本文:唐建生,江向东,潘悦,皇甫立.声纳输出的弱目标信息提取方法仿真分析[J].声学技术,2010,29(1):37-40.
作者姓名:唐建生  江向东  潘悦  皇甫立
作者单位:船舶工业集团公司船舶系统工程部,北京,100036
摘    要:针对存在艇外平台强干扰的情况,对波束域MVDR(b-MVDR)和后置波束形成干扰抵消器(PIC)的弱目标提取能力进行了仿真分析。考虑到艇外平台与目标往往处于同一波束的实际情况,提出首先采用密集波束形成,再进行弱目标提取的方法。仿真结果表明:对艇外平台与目标处于同一波束的情况,PIC的目标分辨能力更强;在干扰较强时,PIC方法表现出更强的弱目标提取能力,但随信干比的增加其能力不断降低;而b-MVDR方法则在各种信干比下均具有良好的性能。

关 键 词:弱目标提取  仿真分析  声纳输出

Simulative analysis of extracting weak target information from sonar outputs
TANG Jian-sheng,JIANG Xiang-dong,PAN Yue,HUANG Fu-li.Simulative analysis of extracting weak target information from sonar outputs[J].Technical Acoustics,2010,29(1):37-40.
Authors:TANG Jian-sheng  JIANG Xiang-dong  PAN Yue  HUANG Fu-li
Institution:TANG Jian-sheng,JIANG Xiang-dong,PAN Yue,HUANG Fu-li (Systems Engineering Research Institute,Beijing 100036,China)
Abstract:In many cases the outside-ship-platform becomes strongly jammed,which makes the ship's sonar hard to detect weak targets.Two methods for extracting weak target information from sonar outputs,the beamspace MVDR (b-MVDR) and the post-beamformer interference canceller (PIC),are analyzed through computer simulations.And simulation results show that the PIC has the improved resolution performance over the b-MVDR,but the PIC's capability to extract weak target decreases as the signal-to-interference ratio (SIR) i...
Keywords:extracting weak target  simulation analysis  sonar outputs
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