对光电成像系统干扰效果的评估方法

Evaluation method for jamming effectiveness on electro-optical imaging systems

提出了对两类光电成像系统干扰效果的评估准则。对观瞄用光电成像系统,可以根据对成像功能的损伤破坏程度将激光致盲干扰效果划分为四个等级,根据对目标识别的影响程度将烟幕干扰效果划分为三个等级。为定量评估烟幕对观瞄用光电成像系统的干扰效果,可以采用成像系统在实施干扰前后图像之间的相关函数作为评估指标,按照相关函数值的大小将干扰效果划分为三个等级。对跟踪用光电成像系统,可依据有干扰时成像系统能否输出有效跟踪误差以及跟踪误差是否超出正常跟踪精度的三倍判定干扰是否有效,并依据干扰成功率的大小划分干扰等级。

The evaluation rules for jamming effectiveness are proposed for jamming on two classes of electro-optical imaging systems. For laser blinding jamming upon the imaging system just for observation or aiming, the jamming effect is graded into four jamming levels according to the degree of damage to the imaging performance. For smokescreen jamming upon the imaging system for observation or aiming, the jamming effect is graded into three jamming levels according to the degree of interference to target identification. In addition, the correlation function between the two images with and without jamming is proposed as an evaluation index for smokescreen jamming effectiveness and the jamming effect according to the correlation function is also graded into three jamming levels. For jamming upon the imaging system for automatic tracking, whether the imaging system with jamming can produce effective tracking errors, or whether its tracking error with jamming is greater three times than its tracking accuracy when there is no jamming is proposed as the criterion for whether a jamming is effective or not. The jamming effect can be graded into several levels according to the jamming success rate.