基于图像特征相关度的激光干扰卫星效果评估

摘要

In view of the problem that the effect of laser jammed optical imaging satellite is difficult to evaluate,the correlation degree of the satellite images before and after the jamming is used as the evaluation index,and the index is modified by HVS (human visual system).Using the comprehensive weighting method based on consistent adjacent degree entropy,the comprehensive evaluation model of laser jamming effect is established.The satellite images under laser jamming are evaluated through the model.The results show that this method can objectively reflect the actual effect of laser interference and keep a good consistency with the subjective feelings of the people.The applicability of the model is verified in the evaluation of laser jammed optical imaging satellite.%针对激光干扰光学成像卫星效果难以评估的问题,借鉴图像处理相关理论,将干扰前后卫星图像特征相关度作为评估指标,并采用HVS(人眼视觉系统)对指标进行修正,利用基于一致相邻度熵权的综合赋权方法,建立激光干扰效果综合评估模型.运用模型对受激光干扰条件下的卫星图像进行评估,得到的结论既能客观地反映激光干扰的实际效果,又能与人的主观感受保持较好的一致性,验证了模型在激光干扰光学成像卫星效果评估方面的适用性和科学性.