动平台多站时差定位的数据处理

Data Processing for TDOA of Moving Station

时差定位是比较成熟的无源定位技术。用多种数据处理方法对原始数据进行处理可以得到不同的定位结果,算法包括逐点求解,最小二乘批处理和卡尔曼滤波等。文中给出各个平台运动时对目标定位的方法,定位的精度与平台相对位置的变化有关。仿真结果表明,平台误差在一定范围内时,可以很好地实现时差无源定位。

TDOA location is a mature method for passive radar.Different data processing methods gain different results.These arithmetics include solve the equation direct,WLS and Kalman filter.We can also locate the object when these stations move and keep the relative distribution.The precision of location has relation with the variety of the station's position.Simulation indicates that the method of TDOA works when the variety of the station′s position can be confined to some extent even the stations move.