圆柱阵主动声呐基于直接数据域空时二维处理

摘要

Space-time adaptive processing (STAP) is an efficient way to reduce reverbration of a sonar. The reberbra-tion of a sonar of cylindrical array has strong non-uniform, which prevent the capacity promotation of STAP. This paper pro-poses 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.%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.