Detection in present of reverberation Combined with Blind Source Separation and Beamforming

摘要：

Reverberation is a main problem to sonar signal processing. Based on the proposed data model of the active sonar, we present a new algorithm for detection in present of reverberation. The proposed method uses the sliding window divide the data into several blocks first, blind source separation (BSS) is used to separates the sonar data into reverberation component and target component, and then the two components is reconstructed to array data, beamforming is used to estimate the direction and enhance the target echo at last. It also used the simulation data and sea trial data to verify the proposed method. Compared with the classical algorithm, the method can get the target location exactly and advance the output signal and reverberation ratio (OSRR) to 4dB at least The result shows that, the proposed data model is accord to the characteristic of reverberation and the method has better performance for reverberation canceling than the classical method.

关键词： Reveberation beamforming active sonar BSS OSRR

作者: Ce Xu Xinhua Zhang Zhaoyan Xu

作者单位: Department of Information and Communication Dalian Naval academy Dalian China

会议类型: 国际会议

会议名称: The 2nd IEEE International Conference on Advanced Computer Control(第二届先进计算机控制国际会议 ICACC 2010)

会议地点: 沈阳

会议语种:英文

页码: 158-162

在线出版日期: 2010-03-27（万方平台首次上网日期，不代表论文的发表时间）