拖船噪声对拖线阵声呐的干扰特性分析  

Analysis of interference characteristics of tow-ship noise to towed line array sonar

作　　者：周健 宋雪晶 刘福臣 ZHOU Jian;SONG Xuejing;LIU Fuchen(Key Laboratory of Sonar Technology,Hangzhou 310023,Zhejiang,China;Hangzhou Applied Acoustics Research Institute,Hangzhou 310023,Zhejiang,China)

机构地区：[1]声呐技术重点实验室,浙江杭州310023 [2]杭州应用声学研究所,浙江杭州310023

出　　处：《声学技术》2023年第5期609-615,共7页Technical Acoustics

摘　　要：针对拖船自噪声影响线列阵探测性能的问题,文章研究了浅海和深海环境下线列阵对拖船自噪声的波束响应。仿真结果表明,浅海环境下拖船自噪声会在0°~20°的方位区间内产生干扰,深海环境下会在0°~20°和60°~90°两个方位区间内产生干扰,并给出了最大波束响应偏离端射方向和深海环境下远离端射方向干扰出现的主要原因。海试数据处理结果证明,深海环境下拖船自噪声确实会在相应的方位区间内产生干扰。拖船干扰在不同环境下特性分析的结果有望应用于拖船自噪声抑制算法的研究。Because the self-noise of the tow-ship can affect the detection performance of a linear array,the beam response of the linear array to the self-noise of tow-ship in the shallow sea and deep sea environments is studied in this paper.Simulation results show that the interference of self-noise of the tow-ship occurs in the azimuth of 0°−20°in the shallow sea environment,and occurs in the azimuth of 0°−20°and 60°−90°in the deep sea environment.The reasons why the maximum beam response deviates from the end-fire direction and the interference occurs in the direction far away from the end-fire direction in the deep-sea environment are given.The sea trial data processing results prove that the self-noise of the tow-ship in the deep-sea environment indeed causes interference in the corresponding azimuth range.The results of characteristic analysis of tow-ship interference in different environments are expected to be applied to the research on self-noise of the tow-ship suppression algorithm.

关 键 词：拖船自噪声 线列阵 波束响应 干扰 

分 类 号：TB56[交通运输工程—水声工程]