一种高重频信号的时差定位方法

A method of TDOA location for HPRF signals

对高重频信号进行脉冲配对的过程中会产生大量的模糊时差,无法对目标进行准确定位。本算法根据信号脉间参数变化特征在全脉冲级别采用多数据累积的方法,利用真实时间差的收敛一致性剔除模糊解,减少虚假配对,再利用关联、跟踪、滤波等方法对定位点迹结果进行挑选和修正,最终生成目标航迹信息。仿真结果表明,该方法可以有效抑制虚假解,提升高重频信号目标正确定位的概率。

In the process of pulse pairing of the HPRF signals, a large number of ambiguous TDOAscan be generated, and the targets cannot be accurately located. According to the characteristics ofsignal pulse parameter variation, the multi？data accumulation method is adopted at the full pulse lev？el, and the ambiguous results are eliminated through the consistent convergence of the real TDOAresults to reduce the false pairing, and then the locating plot results are selected and correctedthrough association, tracking and filtering. Finally, the target tracks are generated. The simulationresults show that this method can effectively suppress the false results and enhance the probability ofcorrect target location for the HPRF signals.