混响背景下提高信号检测性能的时空处理算法

优化与约束空域处理算法（SPOC）是一种用于提高被动声纳方位分辨力的自适应波束形成算法。在对SPOC算法性能分析基础之上,将其应用于主动声纳检测技术中,针对浅海混响环境下信号检测难的问题,提出了一种结合信号方位方差加权的SPOC多拍时空处理检测算法,实验数据处理结果证明此算法可有效地抑制混响,提高了混响起伏背景下信号的检测性能,并使输出背景最为＂平坦＂。

The algorithm of improving detection performance with the method of STAP under the reverberation background

SPOC is an adaptive beamforming algorithm which is used to improve the resolving power of DOA（Direct of Arrive） in passive sonar.This paper analyzes the performance of SPOC and applies the algorithm to the detection in active sonar,in order to solve the difficult of signal detection in reverberation environment,the paper proposed a combined detection algorithm of the variance-of-bearing based on STAP,and the real data prove the effectiveness of this method which could suppress the reverberation,enhance the signal detection performance and make the background the smoothest.