An effective signal sorting algorithm based on the distribution analysis of the numbers of pulses

Radar signal sorting is an important issue in radar electronic warfare, and its accuracy directly affects the identification of radar radiation sources and the effectiveness of electronic reconnaissance systems. This article proposes an efficient radar sorting algorithm. Firstly, the number of pulses in small intervals is counted, and the number of pulses in the interval is calculated. Then, the potential pulse interval is searched for, and the corresponding pulse string of the signal with the potential pulse interval is obtained using an improved sequence retrieval algorithm based on vector dot product. The interference between pulse strings with different PRIs (Pulse Repetition Intervals) is reduced by using the method of successive elimination. Simulation experiments show that the algorithm greatly reduces the calculation time while maintaining high accuracy in radar sorting.