基于贝叶斯网络的某机载雷达电磁损伤评估

针对机载雷达面临越来越严重的电磁脉冲武器威胁的现实问题,开展了机载雷达的电磁损伤评估.通过对雷达结构的分析和简化以及由抢修时间来确定网络参数的方法,建立了雷达电磁损伤评估的贝叶斯网络模型;利用贝叶斯网络推理评定雷达的电磁损伤等级;在定义了期望抢修效率的基础上给出雷达抢修决策的方法.仿真结果显示:在距离100m,辐射功率10GW,波束中心对准机载雷达的条件下,高功率微波弹MK84将对某机载雷达造成中等损伤,给出了该条件下雷达的抢修顺序.该方法对于开展机载雷达电磁损伤抢修和电磁加固具有一定的军事应用价值.

Electromagnetic Damage Assessment of Airborne Radar Based on Bayesian Networks

Aiming at the problem that airborne radar is facing more and more serious threats by electromagnetic pulse (EMP) weapon, the research on electromagnetic damage assessment of airborne radar is carried out in this paper. By analyzing and simplifying the radar's structure, the Bayesian network model is established to assess the electromagnetic damage of the radar, and the network parameters could be determined on the basis of repair time demand. The radar repairing scheme could also be decided based on the expected efficiency of repair. Simulation results show that, under the conditions of 100 m distance, 10 GW power and EMP beam center aiming at the radar, the middle damaged degree of airborne radar is made by high power microwave bomb MK84. Its repairing order is given as well. The electromagnetic damage assessment method proposed in the paper is of military application values for repair and enhancement of the radar suffering electromagnetic attack.