An Algorithm for Radar Signal Selection Based on Adaptive Threshold Correction PRI Transform

With the rapid development of the radio field, it is challenging to sort out target radar signals quickly and accurately when multiple radar signals coexist simultaneously. Traditional radar signal sorting algorithms rely on the known time of arrival (TOA) of pulse signals; however, in practical signal sorting scenarios, multiple radar signals with time-domain overlap frequently occur, which makes the accurate determination of TOA impossible. Therefore, a comprehensive algorithm is proposed in this paper. Specifically, the TOA of multiple radar signals is acquired through TOA detection based on an adaptive threshold, and radar signal sorting is implemented by combining the modified pulse repetition interval (PRI) transform. To verify the effectiveness of the proposed algorithm, experiments are carried out using simulated signals and actually collected signals. The experimental results demonstrate that the comprehensive radar signal sorting algorithm proposed in this paper can effectively sort radar pulse signals with high reliability.