Abstract: Aiming at the problem of limited jamming range and regularity of intermittent sampling repeater jamming, a method of intermittent sampling repeater jamming based on multiple phases sectionalized modulation (MPSM) is proposed. First, the signal is sampled intermittently, then each section of signal is modulated with different phases, and then the signal is amplified and transmitted. By controlling the intermittent sampling parameters and modulation phase, a number of compression jamming regions with controllable positions and ranges can be generated, which effectively expands the range of intermittent sampling repeater jamming and weakens the regularity of intermittent sampling repeater jamming. On this basis, aiming at the problem that the relationship between jamming effect and modulation phase is difficult to deduce in MPSM jamming, an optimization method based on genetic algorithm is proposed to solve the problem which can obtain the optimal jamming effect and parameters. Theoretical analysis and simulation experiments prove the feasibility and effectiveness of the jamming method.

Key words: intermittent sampling repeater jamming, multiple phases sectionalized modulation (MPSM), pulse compression, suppression jamming, genetic algorithm