基于PNFM-LFM复合调制的探测干扰共享波形设计

doi:10.7527/S1000-6893.2021.25821

Abstract

Abstract: To satisfy the design requirements of shared signal waveform in integrated radar-electronic warfare, a detection-jamming shared waveform was proposed based on pseudo-random-code noise frequency modulation and linear frequency modulation. In terms of pseudo-randomness and regularity of pseudorandom sequences, it is analyzed and verified through theoretical derivation and simulation experiments that the detection-jamming shared waveform has good ambiguity function and linear controllable spectrum characteristics, and the average utilization rate of interference power can reach 38% in the effective bandwidth. Through processing of the detection-jamming shared signal, the local receiver can successfully detect the echo signal with the SNR of no less than -27 dB, and the improvement factor of post-MTI can reach 30 dB.

Key words: pseudo-random-codes noise frequency modulation, integration, signal style, ambiguity function, power utilization rate

CLC Number:

XIONG Guomiao, LI Yunpeng, LI Pengjiao, CHEN Chao. Design and performance analysis of an integrated detection-jamming shared waveform based on PNFM-LFM composite modulation[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2021, 42(8): 525821-525821.

References

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Design and performance analysis of an integrated detection-jamming shared waveform based on PNFM-LFM composite modulation

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