摘要
针对水下网络战条件下目标定位的特点,分析了纯距离系统可观测的条件,即对静止目标、观测站作直线运动,系统是不可观测的;并通过与同条件下的纯方位系统的对比,得出了在一般情况下,纯距离系统比纯方位系统具有更弱的观测性的结论;给出了估计目标位置参数的一种递推算法,该算法具有形式简单,不需要初值的特点;仿真试验表明,算法具有收敛速度快,精度好,稳定的优点,应用前景良好。
Aimed at the target positioning under the condition of underwater network warfare, the observable conditions for range-only system are analyzed. When the target is stationary and the observer travels in straight-line movement, the range-only system is unable to observe. By comparing the range-only system with bearings-only system under the same condition, a conclusion that in general the former has weaker observability is acquired. A recursive algorithm for estimation is given. It has a brief form and can be performed without initial value. The simulation results demonstrate that the new algorithm has better performance in convergence rate, precision and stability. The prospect of new algorithm application is positive.
出处
《指挥控制与仿真》
2009年第4期26-29,共4页
Command Control & Simulation
关键词
纯距离目标运动分析
可观测性
递推算法
range-only target motion analysis
observability
recursive algorithm
