| Citation: | LIU Shaokun, YAN Xiaopeng, LI Ping, et al. Anti-periodic modulation jamming performance of pulse Doppler fuze[J]. Journal of Beijing University of Aeronautics and Astronautics, 2018, 44(5): 1018-1025. doi: 10.13700/j.bh.1001-5965.2017.0369(in Chinese)
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The jamming effect of periodic modulation signal on pulse Doppler (PD) fuze is studied based on the parameter of processing gain to quantitatively analyze and characterize the anti-jamming performance of PD fuze and obtain the factor that affects the anti-jamming performance of PD fuze. The processing gain of the procedure from echo reception to correlation detection under the interference of typical periodic modulation jamming style is derived. The quantitative relation between the anti-jamming performance of PD fuze and the characteristic parameter that affects the anti-jamming performance is obtained. It provides a theoretical basis for the improvement of interference performance of PD fuze and technical support for the interference performance assessment of PD fuze. Theoretical derivation, simulation and measurement results indicate that the anti-jamming performance of PD fuze to periodic amplitude modulation is worse than its anti-jamming performance to periodic frequency modulation, and the anti-periodic modulation jamming performance mainly depends on range gate pulse width, Doppler filter bandwidth and filter type.
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