海洋中声压水听器对声纳目标跟踪定位仿真

摘要

The traditional sonar system,that is composed of pressure hydrophone used to be line array,can procure target bearing and track the target by the array signal processing method.However,the biggest problem of line array is the left-right ambiguity.For this,the conventional beam forming methods of four arrays that include line array,circular array,cross array and Y-like array are analyzed,and the performance of sonar target tracking and locating based on different array is compared by simulating.The simulation results show that all but line array can estimate the targets direction,and the circular array is the best,while the cross array is the worst.Line array has high spatial gain and narrow beam width,and on the non-end-fire area,its detection range and azimuth resolution are better than other arrays.%在传统的声纳系统均采用声压水听器构成阵列模型对目标进行探测跟踪时,由于声压直线阵存在目标“左右舷模糊”问题,为准确信计目标真实方位,分析了包括直线阵、圆阵、十字阵和Y形阵在内的四种常见阵形的常规波束形成方法,并通过仿真比较了不同阵形对声纳目标的跟踪定位性能.结果表明,除直线阵会产生左右舷模糊目标外,其余阵形均可确认目标真实方位,且圆阵效果最好,十字阵效果最差.但直线阵空间增益大,波束宽度窄,在非端射方位区域,探测距离和方位分辨力均优于其它阵形.