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从飞行器雷达散射截面的计算机仿真出发,对运动飞行器的RCS动态特性和复杂电磁环境下的隐身性能进行研究。基于运动目标姿态参数的转换原理,得到运动目标的动态RCS特性,通过相对计算方法计算雷达的瞬时探测概率,并给出有源和无源干扰条件下探测概率的计算方法;以单部雷达的目标检测准则为基础,给出了雷达组网模式下的综合检测准则;考虑实际地形遮蔽,给出飞行器在突防时的暴露范围和预警时间的计算模型;最后依据预警时间给出RCS的指标需求论证方法。算法可模拟飞行器在真实战场中的动态RCS特性,并提供一种有效的探测概率计算及目标检测判定方法。
Based on the computer simulation of radar cross section, the dynamic characteristics of RCS and the stealth performance in complex electromagnetic environment are studied. The dynamic RCS characteristics of the moving target are obtained based on the transformation principle of the moving target attitude parameters. The instantaneous detection probability of the radar is calculated by the relative calculation method, and the calculation method of the detection probability under the active and passive interference conditions is given. Based on the target detection criteria, a comprehensive detection criterion is given in the radar network mode. The calculation model of exposure range and warning time of the aircraft during penetration is given considering the actual terrain shading. Finally, the RCS index Demand demonstration method. The algorithm can simulate the dynamic RCS characteristics of the aircraft in the real battlefield and provide an effective detection probability calculation and target detection and determination method.