Citation: | LIU Zhanqiang, LIANG Lujiang, WANG Chunyanget al. Influence of self-defense jamming of stealth aircraft on radar detection performance[J]. Journal of Beijing University of Aeronautics and Astronautics, 2017, 43(12): 2520-2529. doi: 10.13700/j.bh.1001-5965.2016.0876(in Chinese) |
Aimed at the problem that it is difficult to evaluate radar detection performance when detecting stealth aircraft under the condition of self-defense jamming, a self-defense jamming model of stealth aircraft based on spiral flying was proposed. After aircraft susceptivity analysis, trajectory parameter setting and coordinate system conversion, attitude angle to the line of sight of aircraft was calculated. Then combined with all airspace static RCS data of stealth aircraft, the time-varying dynamic RCS series was simulated. According to detection range equation of radar, the change results of radar detection range were obtained under the normal flight conditions and self-defense jamming conditions of aircraft, and the instantaneous detection probabilities of radar were compared and studied utilizing detection probability formula of radar under two kinds of aircraft conditions. The results show that self-defense jamming of stealth aircraft can reduce detection range and detection probability, and decline radar detection performance, so the certain reference value is offered to accumulate the electronic warfare experience for both sides at war.
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