【摘要】 针对在三维空间做匀速运动的目标,应用非线性系统的可测性理论,对方位-到达时间TMA(目标运动分析)的可测性进行了分析。基于方位和到达时间方法的单站无源定位技术,是通过观测站接收目标辐射源两次TOA(脉冲到达时间)测量之间由于目标运动所造成目标与观测站之间的径向距离发生变化的信息,对目标进行定位。结果表明在观测站与辐射源间的方位角和俯仰角变化率不能同时为零的情况下,观测机不必做机动就可以实现观测。更多还原

【Abstract】 Based on the observability theory of nonlinear system,we made observability analysis of DOA-TOA Target Movement Analysis(TMA) for a target moving in a 3-dimentional space with constant velocity.Single-station passive locating based on DOA-TOA canlocate the target by obtaining the change of radial distance from the station to the target because of target moving,which is observed by the station from two TOA surveys.The result shows that: when the change rates of azimuth and of elevation between the observe station and the radiation source are not both zero,the observer can make observation without maneuvering.更多还原