A Fast Sea Interface Reverberation Suppression Method Based on Unitary Transformation

摘要：

The low-rank structure reverberation suppression algorithm is a better method to restrain the sea interface reverberation. But the data processing speed of the method is very slowly due to the complexity of singular value decomposition. It can not meet the real-time requirement in actual application. This article present a signal subspace fast approximation method based on unitary transformation which can estimate the reverberation subspace rapidly. This method transform array data matrix to real matrix using the center symmetry of uniform linear array and unitary transformation at first. Then it calculates singular value and eigenvalue decomposition of the real matrix . Signal subspace can be estimated using the method of rational approximation finally. The methods computation is little comparatively and can improved the operation speed greatly. The conclusions of the experiments show that the algorithm has a higher operation speed meanwhile suppress the reverberation effectively.

关键词： sea Interface reverberation subspace unitary transformation singular value decomposition eigenvalue

作者: LI Yue-qin LI Jin-ping HAN Lei

作者单位: Information College Beijing Union University Beijing 100101, China State key laboratory explosion science and technology Beijing Institute of Technology Beijing, China

会议类型: 国际会议

会议名称: 2010 International Conference on Digital Manufacturing and Automation(2010 数字制造与自动化国际会议 ICDMA 2010)

会议地点: 长沙

会议语种:英文

页码: 3-6

在线出版日期: 2010-12-18（万方平台首次上网日期，不代表论文的发表时间）