一种新的单枚被动定向浮标目标定位方法

A Target Location Algorithm Based on Single Direction Finding and Ranging Sonobuoy

为解决单枚被动定向(DIFAR)浮标目标定位的问题,提出一种新的DIFAR浮标目标定位方法。该方法针对下一代新型高性能浮标处理平台,在使用目标方位数据同时,充分利用目标的多普勒信息,实现了单枚DIFAR浮标对目标的发现、定位、追踪。在计算目标参数时,新算法利用多次测量数据,以最小二乘原理,进一步提高了目标参数的计算精度。仿真结果表明了新算法的正确性。整个算法简单、稳定,易于工程实现,克服了传统算法至少需要2枚DIFAR浮标参与才能完成目标定位的缺点。

In order to solve the problem of target location using single direction finding and ranging（DIFAR） sonobuoy,a new targets location algorithm is proposed.The algorithm based on new generation sonobuoy signal processing system makes full use of the target＇s Dopper information and direction estimation,and can detect,locate and track targets by using only one DIFAR sonobuoy.Furthermore,it increases calculation accuracy remarkably by using multiple test results based on the least square method.Simulation results show its correctness.And,the algorithm is simple,stable and easy to be implemented in engineering and can overcome the disadvantages of other classical algorithm which needs two DIFAR sonobuoys at least.