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针对战场电磁环境复杂度量化评估的问题,提出一种机载航空电子系统面临电磁环境复杂度的量化评估方法。通过对构成航空电子系统的各分系统、设备工作效能的评估,实现对航空电子系统面临电磁环境复杂度的量化评估。将分系统、设备的电磁敏感度测试数据作为评估对象;将模糊数学中的多层模糊综合评判理论作为评估流程;用DempsterShafer证据理论法对电磁敏感度测试中位于安全裕度曲线和敏感度曲线之间的干扰量值进行处理;将国家军用标准GJB72A—2002《电磁干扰和电磁兼容性术语》中分系统及设备的关键性类别的规定作为权重确定的依据。在考虑无法判定工作状态区域上的数据处理中,与传统的电磁环境复杂度评估方法相比效果改善了15.7%,为解决战场电磁环境复杂性评估问题提供了一种新思路。
Aiming at the problem of quantitative evaluation of the electromagnetic environment complexity in battlefield, a quantitative evaluation method of the electromagnetic environment complexity of airborne avionics system is proposed. Through the assessment of the work efficiency of the subsystems and equipment that make up the avionics system, the quantitative assessment of the avionics environment complexity faced by the avionics system can be realized. The electromagnetic susceptibility test data of the system and equipment are taken as the evaluation objects. The multi-layer fuzzy comprehensive evaluation theory in fuzzy mathematics is taken as the assessment flow. The DempsterShafer evidence theory is used to evaluate the safety margin curve and the sensitivity curve ; The key categories of subsystems and equipment in the national military standard GJB72A-2002 “Electromagnetic Interference and Electromagnetic Compatibility Terminology” shall be taken as the basis for weighting. Compared with the traditional methods for assessing the complexity of the electromagnetic environment, the effect is improved by 15.7% in considering the data processing in the area where the working state can not be determined, providing a new idea for solving the complexity assessment of the electromagnetic environment in the battlefield.