摘要
采用了一种基于机载干涉仪坐标系的定位算法,可以利用干涉仪系统测量出的时差和相位差变化率对三维空间中的固定辐射源实现瞬时定位。针对测量误差较大的情况,指出应通过多次测量进行统计处理来提高定位精度,并引入了一种新的滤波估计算法UKF,最后给出了单次测量定位和多次测量滤波的仿真结果和结论。
A location method based on interferometer coordinates is discussed.The method can locate fixed emitters in three-dimensional space passively using TDOA and phase difference rate of change measured by interferometer antenna array. When measurements error is big, a sequentially process should be applied to improve location precision and a new algorithm UKF is introduced. At last,simulations results show the method is effective.
