摘要
被动目标跟踪是水下声目标探测的关键,分裂波束互谱跟踪法是经典的被动目标跟踪方法。实际环境中,强弱目标往往同时存在,以常规波束形成为基础的分裂波束互谱跟踪法,对弱目标的方位跟踪性能易受强目标干扰的影响。针对上述问题,对阵列接收信号进行全相位预处理,抑制强目标空间谱泄漏,在此基础上构建分裂波束互谱跟踪器,改善强目标干扰下对弱目标的跟踪性能,并通过仿真实验验证了所提算法的有效性。
Passive target tracking is the key to underwater acoustic target detection.Split beam cross-spectral tracking method is a classical passive target tracking method.Weak targets usually exist along with strong targets.The split-beam cross-spectrum tracking method widely employs the conventional beam-forming,whose azimuth tracking performance of weak targets is easily affected by the strong interference targets.Aiming at the problem,all-phase pre-processing is implemented in array signal process and the spatial spectrum leakage of strong target is suppressed.Based on this,the split beam cross-spectral tracker is built.The tracking performance of weak targets under strong interference target is improved.The effectiveness of the algorithm is verified by simulation experiments.
作者
马世龙
MA Shilong(Hangzhou Applied Acoustic Research Institute,Hangzhou 310012,China)
出处
《电声技术》
2021年第5期77-80,共4页
Audio Engineering
