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为评估电子对抗装备对光电搜索跟踪系统的干扰效果,针对光电搜索跟踪系统工作过程中的搜索、捕获、跟踪三个不同阶段,提出了相应的干扰效果评估方法。在光电搜索跟踪系统的搜索阶段和捕获阶段,分别依据实施干扰前后光电搜索跟踪系统的目标发现概率和捕获概率的变化来评估对系统的干扰效果。在跟踪阶段,以实施干扰后系统跟踪误差是否超出无干扰时正常跟踪精度的三倍来判定一次干扰是否有效,依据多次试验的干扰成功率来评估干扰效果和确定干扰效果的等级。
In order to evaluate the effect of electronic countermeasure equipment on the photoelectric search and tracking system, aiming at the three different stages of searching, capturing and tracking during the operation of the photoelectric search and tracking system, a corresponding method for evaluating the interference effect is proposed. In the search phase and the capture phase of the photoelectric search and tracking system, the interference effects on the system are evaluated respectively according to the change of the target discovery probability and the acquisition probability of the photoelectric search and tracking system before and after the implementation of the interference. During the tracking phase, whether the system tracking error exceeds three times of the normal tracking accuracy without interference is used to determine whether the primary interference is effective. The interference effect and the level of the interference effect are evaluated according to the successful rate of the interference in many experiments.