基于图像熵的逆合成孔径雷达干扰效果评估方法  

Evaluation Method of Jamming Effect on ISAR Based on Image Entropy

作　　者：崔瑞[1] 薛磊[1] 

机构地区：[1]电子工程学院,安徽合肥230037

出　　处：《现代防御技术》2009年第1期94-97,共4页Modern Defence Technology

摘　　要：由于逆合成孔径雷达(ISAR)是一种新体制雷达,一些用于评估常规体制雷达干扰效果的方法和手段对于ISAR来说并不适用。综合考虑雷达干扰的原理和图像处理的理论,从图像熵的角度出发,提出了一种新的对ISAR压制干扰效果的评估方法,由于图像熵反映了图像聚焦性能的好坏,可通过干扰后图像熵值的变化来进行干扰效果的评估,仿真结果表明了该评估方法的正确性和有效性。Some methods used to evaluate the jamming effect of common radar are unsuitable to inverse synthetic aperture radar（ISAR） because of its new work system. Considering the principle of radar jamming and the theory of image disposal, a new evaluation method of barrage jamming effect on ISAR based on the concept of image entropy is given; it evaluates the jamming effect through calculating the change of jammed image＇ s entropy, because the entropy of image can reflect its focus capability. The results of simulation prove the method is corrective and effective

关 键 词：逆合成孔径雷达 压制干扰 图像熵 评估 

分 类 号：TN958[电子电信—信号与信息处理] TN974[电子电信—信息与通信工程]