一种 PRI 变化的雷达信号无源定位方法

目前脉冲重复间隔（PRI）恒定的雷达信号已经越来越少，取而代之的是PRI变化的雷达信号。传统的相位差变化率定位法均假设PRI恒定，没有考虑因PRI变化引起的相位差变化率测量误差和定位误差。提出了一种利用插值法重新构造相位差数据的方法，提取了相位差变化率并进行了定位解算。仿真结果表明采用该相位差数据重构方法能够实现快速高精度的无源定位。

A Passive Location Method of The Radar Signal with Variational PRI

Currently ,radar signal with constant pulse repetition interval (PRI) is less and less ,in-stead of this is radar signal with variational PRI .Traditional location method of phase difference change rate almost supposes that PRI is constant ,hasn't considered the measuring error of phase difference rate and position error due to the change of PRI .This paper puts forward a kind of meth-od to reconstruct phase difference data by means of interpolation method ,abstracts the phase difference rate and performs location calculation .T he simulation results show that the method to reconstruct phase difference data can quickly achieve passive location with high accuracy .