多方位-速度目标跟踪分析及一种新算法

Analysis of Target Tracking with Bearing Measurements Plus Known Speed and a New Algorithm

对多方位-速度目标跟踪方法的解算原理进行了分析,并从非线性、观测性和多解性方面对多方位-速度法的性质进行了分析。说明多方位-速度法本质上是非线性的且具有多解性,同时给出了系统可观测的两个必要条件。揭示了以往解算方法的问题所在,并提出了一种全新的方法。仿真结果表明,该方法在收敛时间、精度、计算代价、使用方便性等方面都远远优于以往的方法。

This paper analyzes the principle of a special target tracking method-tracking a target with a supposedly known speed with measured bearings.Its properties are also analyzed from the perspectives of nonlinearity,observability and possibly multiple solutions.It shows that this problem is essentially nonlinear and normally has multiple solutions.Two necessary conditions for this tracking problem being observable are obtained.A new algorithm for this problem is presented.Simulations show that this new algorithm is much more accurate,faster,and simpler than previous methods.