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改进的对星载SAR的应答式欺骗干扰
引用本文:甘荣兵,王建国.改进的对星载SAR的应答式欺骗干扰[J].电子科技大学学报(自然科学版),2005,34(5):614-617.
作者姓名:甘荣兵  王建国
作者单位:1.电子科技大学电子工程学院 成都 610054
摘    要:分析了对星载SAR的应答式欺骗干扰,并对其进行了改进。改进后的干扰方式只需从敌方雷达信号中估计信号的多普勒斜率、雷达飞行速度和脉冲重复频率,并且实现简单。讨论了参数估计精度对干扰信号成像的影响,结果表明该方法对参数精度要求不高。指出了多普勒斜率估计的方法,通过仿真实验验证了理论分析的正确性和方法的有效性,这对欺骗干扰信号生成算法和欺骗干扰的实现具有重要意义。

关 键 词:合成孔径雷达    电子对抗    欺骗干扰    多普勒频率
收稿时间:2004-09-20
修稿时间:2004-09-20

Improvement of the Responsive Deception for Spaceborne SAR
Gan RongBing;Wang JianGuo.Improvement of the Responsive Deception for Spaceborne SAR[J].Journal of University of Electronic Science and Technology of China,2005,34(5):614-617.
Authors:Gan RongBing;Wang JianGuo
Affiliation:1.School of Electronic Engineering,UEST of China Chengdu 610054
Abstract:The responsive deception for spaceborne SAR is studied and improved. The algorithm is got by analyzing the range domain and cross-range domain respectively. This algorithm provides high precision compress of cheat targets. And merely need the estimation of few radar parameters as:Dopppler frequency rate from the echoes, radar velocity and radar pulse repeat frequency. The demand of the precision of parameters is analyzed and the result shows that the request is little. The method of the estimation of Doppler frequency rate is worked out. The correctness of theoretic analyze and the validity of the algorithm are proved by computer simulation. The algorithm is of good signification for the theory and the practice of jamming signal production.
Keywords:synthetic aperture radar  electronic countermeasures  cheat jamming  Doppler frequency
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