对参差脉冲重复间隔脉冲列的重频分选

The deinterleaving of radar pulse trains with stagger PRI

分析了一种常见的参差脉冲重复间隔脉冲列的固有性质,其子周期在某范围内可以构成一等差数列,并在此基础上提出了一种新的基于直方图统计的重频分选算法.并对脉冲列的抽取算法做了改进,通过使用变步长的方法来确定起始脉冲.该算法提高了确定起始脉冲的正确率和脉冲抽取的效率.仿真结果表明该算法非常适合于参差脉冲重复间隔脉冲列的分选.

This paper analyses the inherent property of a common style of stagger PRI trains that their subPRIs can form an arithmetical series. A new algorithm of deinterleaving pulse trains based on histogram is presented according to the property. This paper also improves the algorithm of extracting pulse trains by means of changing the length of each step. The algorithm improves the correcting rate of determining the initial pulse and has high efficiency in extracting pulse trains. Simulation results show that the algorithm presented in this paper is very successful in deinterleaving pulse trains with stagger PRI.