锐波束形成技术在圆柱阵被动声纳中的应用

摘要

水下被动跟踪系统是通过分析和处理目标辐射的噪声对目标进行定位,目前对于水面、水下等目标的被动跟踪均已得到实际应用.文中针对海上多目标和弱目标被动跟踪问题,采用了圆柱阵锐波束形成方法,通过对圆柱阵采集的信号进行锐波束形成,减小波束主瓣宽度,同时压低副瓣.给出了Matlab仿真和实际应用情况,结果表明,使用该方法圆柱阵的多目标分辨能力得到明显提高.%Underwater passive tracking system locates the targets by analyzing and processing the noise that the target radiated.At present, the passive tracking of surface and underwater target has been practical application.In this paper, aiming at the problem of passive tracking of multi targets and weak targets at sea, the cylindrical array super beam formation(SBF) method is adopted.By super beam forming the signal collected by cylindrical array, the beam width of the main lobe is reduced, and the side lobe is lowered.Finally, Matlab simulation and practical application are given.The results show that the multi-targets distinguishing capability of the cylindrical array is significantly improved by using this method.