单矢量水听器的组合二阶统计量解卷积方位估计  

Single vector hydrophone time-domain deconvolution bearing estimation method based on combined second-order statistics

作　　者：王宇杰 李子高[1,2] 迟骋[1,2] 鞠东豪 张春华 WANG Yujie;LI Zigao;CHI Cheng;JU Donghao;ZHANG Chunhua(Institute of Acoustics,Chinese Academy of Sciences,Beijing 100190;Key Laboratory of Science and Technology on Advanced Underwater Information,Chinese Academy of Sciences,Beijing 100190)

机构地区：[1]中国科学院声学研究所,北京100190 [2]中国科学院先进水下信息技术重点实验室,北京100190

出　　处：《声学学报》2023年第4期656-667,共12页Acta Acustica

基　　金：国家自然科学基金项目(62201565,62001469)资助。

摘　　要：提出了一种单矢量水听器组合二阶统计量的解卷积方位估计方法。该方法利用单矢量水听器多通道的二阶统计量,组合成一种主瓣更窄且平移不变的波束图,再使用解卷积方法进行精细化方位估计。该方法具有较窄的主瓣宽度,较高的分辨力和较强的鲁棒性。仿真实验和海试数据表明,在矢量水听器各通道响应不一致的非理想条件下,所提方法的双目标分辨力和方位估计精度优于多重信号分类(MUSIC)等其他方法,双目标方位分辨力提升约40%。A time-domain deconvolution method of bearing estimation combining multi-channel high-order statistics is proposed for single-vector hydrophone.The second-order statistics of multiple channels of a vector hydrophone is used to construct a beam pattern with narrow main lobe and invariant translation,and the deconvolution algorithm is used to realize the bearing estimation.The proposed method has much narrow main lobe width,higher resolution and robustness.Simulation experiments and sea trial data show that the proposed method outperforms other methods such as multiple signal classification(MUSIC) in terms of dual-target beam resolution and bearing estimation accuracy under non-ideal conditions where the response of each channel of the vector hydrophone is inconsistent,and the dual-target beam resolution is improved by about 40%.

关 键 词：水声信号处理 单矢量水听器 波达方位估计 波束形成 解卷积 

分 类 号：TB565.1[交通运输工程—水声工程]