A New Method for Array Extension based on Minimum Redundancy Linear Array

摘要：

A new array extension method based on non-uniform linear array is proposed to overcome the low hydrophone utilization rate problem and accumulated noise error existing in the most passive synthetic aperture methods based on uniform linear array. Firstly, successive measurements of a virtual uniform linear array are constructed by applying forth-order cumulant to measurements of minimum redundancy linear array. Then, the array is extended by compensating phase differences from an overlap-correlator. The proposed method not only inherits the advantages of the passive synthetic aperture method, but also reduces computation burden. Simulation results show that this method can provide larger aperture with fewer hydrophones through less iterations and effectively suppress Gaussian noise.

关键词： array signal processing minimum redundancy linear array array extension forth-order cumulant

作者: Li Bo Sun Chao

作者单位: Institute of Acoustics Engineering, Northwestern Polytechinaical University, Xi’an, China

会议类型: 国际会议

会议名称: 2010 IEEE 10th International Conference on Signal Processing(第十届信号处理国际会议 ICSP 2010)

会议地点: 北京

会议语种:英文

页码: 332-335

在线出版日期: 2010-08-24（万方平台首次上网日期，不代表论文的发表时间）