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声纳中具方向性宽带强干扰的实时抑制方法
引用本文:李嶷,陈新华,孙长瑜,卫翀华.声纳中具方向性宽带强干扰的实时抑制方法[J].应用声学,2008,27(4):257-263.
作者姓名:李嶷  陈新华  孙长瑜  卫翀华
作者单位:中国科学院声学研究所,北京,100190
摘    要:声纳中具方向性的宽带强干扰严重影响远处舰船的检测。本文针对此问题,提出一种能实时抑制此类干扰的方法,它以保证干扰方向输出功率最小为约束条件,本文还研究了此方法对目标信号的性能影响情况。最后,通过对海试数据的处理,证明此方法在实践中比较有效。

关 键 词:阵列  方向性宽带强干扰  干扰抵消  实时信号处理

Real-time cancellation of directional wideband interference in sonar
LI Yi,CHEN Xin-Hu,SUN Chang-Yu and WEI Chong-Hua.Real-time cancellation of directional wideband interference in sonar[J].Applied Acoustics,2008,27(4):257-263.
Authors:LI Yi  CHEN Xin-Hu  SUN Chang-Yu and WEI Chong-Hua
Institution:(Institute of Acoustics,Chinese Academy of Sciences,Beijing 100190)
Abstract:Directional wideband interference severely affects the detection of a faraway ship.In order to solve this problem,this paper presents a novel way which uses the criteria of minimum output power to cancel the directional wideband interference by real-time pro- cessing.The characteristic of the target signal affected by this method is also studied.Sea trial data is finally used to verify feasibility of the method,and the result is promising.
Keywords:Array  Strong directional wideband interference  Interference rejection  Real-time signal processing
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