A Real-time Radar Signal Sorting Method and Implementation Based on DSP

In this paper, radar multi-parameter sorting and improved SDIF algorithm are used together to sort out radars. After that, all similar radars are combined, and then a second-order PRT sorting can be performed to remove the harmonic radar and sort the stray PRT sequences. Compared with other methods, the algorithm in this paper has faster processing speed and excellent clustering effect. The algorithm is implemented in parallel processing on the TMS320C6678 platform. The results show that the algorithm can sort out conventional radars and staggered PRT radars, and greatly increase the operation rate to meet the real-time requirements. At present, the algorithm has been applied to a radiation seeker, and can detect radar signals such as LFM, BPSK, continuous wave signals and agile frequency radar signals, with a pulse width of 0.2 to 2048us and a repetition period of 33us to 6.7ms in the frequency band of 2 to 18GHz.