Modeling method for radar countermeasure with cognitive bias
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摘要: 认知偏差是认知电子战中的客观存在。基于动态博弈方法，针对认知雷达对抗过程中因不完整信息和测量误差导致的认知偏差，研究雷达对抗建模方法：以雷达抗干扰改善因子和干扰机干扰效益因子计算博弈双方的效益，采用精炼贝叶斯均衡建立动态雷达对抗模型，分析认知偏差造成的影响。仿真实验结果证明了所提方法的有效性。Abstract: The cognitive bias is an objective existence of cognitive electronic warfare. Based on the method of dynamic gaming, this paper investigates the approach to modeling radar countermeasure with the cognitive bias caused by the incomplete information and the measuring error in the cognitive radar countermeasure. It adopts the anti-jamming improvement factors of radar and the jamming payoff factors of jammer to calculate the utilities of both adversarial parties. Thereafter, the dynamic radar countermeasure model is setup with the perfect Bayesian equilibrium. The influence of cognitive bias on gaming result is further analyzed. The results of simulation test validate the effectiveness of the proposed method.
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图 1 不同假目标识别概率的博弈结果
Figure 1. Results of game with different false target identification probabilities Pd
表 1 AN/SPY-1D雷达参数
Table 1. Parameters of radar AN/SPY-1D
central frequency fc/GHz bandwidth Wr/MHz range resolution Δr/m antenna aperture/m2 antenna gain G/dB beam width θr peak power Pt/MW pulse width τ/μs pulse press ratio k maximum range/km 3.1～3.5 40 0.5～1 12 42 1.7°×1.7° 4～6 6.4～51 128 310 
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