Jamming Mechanism of Frequency Sweep Jamming to FM Doppler Fuze

In order to reveal the jamming mechanism of frequency sweep jamming to FM Doppler fuze, the response of FM Doppler fuze under the condition of frequency sweep jamming is deduced based on the analysis of the operational principle of FM Doppler fuze and the frequency sweep jamming signal feature. The jamming mechanism of frequency sweep jamming to FM Doppler fuze is elucidated, and the simulation analysis and experimental verification are carried out. Theoretical derivation, simulation analysis and experiment indicate that, compared with single-frequency jamming, frequency sweep jamming is fault-tolerant, and can successfully jam the FM Doppler fuze by reasonably setting the sweeping parameters; but its jamming effect will get worse when the FM Doppler fuze employs the strict logic timing judgment between different harmonics.