圆柱阵主动声呐基于直接数据域空时二维处理  

Direct data domain approach to space-time signal proessing for active sonar with cylindrical array

作　　者：吕金华[1] 王飞 佟怡烁 吴浩然[3] LV Jin-hua;WANG Fei;TONG Yi-shuo;WU Hao-ran(Wuhan Institute of Shipbuilding Technology, Wuhan 430050, China;No.91550 Unit of PLA, Dalian 116021, China;Naval University of Engineering, Wuhan 430033, China)

机构地区：[1]武汉船舶职业技术学院 [2]中国人民解放军91550部队 [3]海军工程大学

出　　处：《舰船科学技术》2018年第6期106-109,共4页Ship Science and Technology

基　　金：国家自然科学基金资助项目(61671461)

摘　　要：空时二维处理(STAP)是一种抑制混响的有效技术途径。圆柱阵主动声呐混响具有强非均匀性,影响STAP处理性能的提升。本文提出了一种适合圆柱阵主动声呐的基于直接数据域空时二维处理算法。算法借鉴雷达STAP直接数据域方法,采用二阶对消方法抑制目标信号。数字仿真结果表明,该算法可以改善圆柱阵主动声呐混响抑制的性能。Space-time adaptive processing（STAP） is an efficient way to reduce reverbration of a sonar. The reberbration of a sonar of cylindrical array has strong non-uniform, which prevent the capacity promotation of STAP. This paper proposes an algorithm based on direct data domain（DDD） method suitable for a sonar of cylindrical array, in which two-order target cancellation orinating from radar is adopted. Digital simulation shows that the algorithm can improve the performance of the inhibiting reverbration of a sonar of cylindrical array.

关 键 词：圆柱阵主动声呐 直接数据域 空时二维处理 

分 类 号：TB566[交通运输工程—水声工程]