基于Logistic混沌映射移频的SAR转发干扰方法

doi:10.3969/j.issn.1001-506X.2011.10.13

Journal of Systems Engineering and Electronics ›› 2011, Vol. 33 ›› Issue (10): 2210-2216.doi: 10.3969/j.issn.1001-506X.2011.10.13

基于Logistic混沌映射移频的SAR转发干扰方法

谢春健, 李建周, 郭陈江, 许家栋

西北工业大学电子信息学院，陕西西安 710071

出版日期:2011-10-15 发布日期:2010-01-03

Repeater jamming method for SAR based on logistic-map shift frequency

XIE Chun-jian, LI Jian-zhou, GUO Chen-jiang, XU Jia-dong

Online:2011-10-15 Published:2010-01-03

摘要/Abstract

摘要：

提出了一种距离向混沌序列移频,方位向余弦调相的SAR欺骗干扰方法。分析了距离向固定移频干扰、随机移频干扰结合方位向调相干扰的特点。为了克服这两种干扰方法的不足,采用基于混沌序列的距离向移频结合方位余弦调相干扰方法,既可以大大增加被干扰方对干扰机位置的侦测难度,又可获得部分的压缩增益,在二维方向上形成占据一定宽度的面域干扰,适用于对分布目标的压制。与传统固定移频,随机移频结合方位向调相干扰结果进行仿真对比,验证了所提方法的优越性。

Abstract:

A method of jamming for SAR combining chaotic shift frequency and modulation phase is proposed. The characteristics of both traditional fixed shift frequency and radom shift frequency jamming combining with the modulation phase jamming are analyzed. The range chaos shift frequency combined with azimuth cosine modulation phase jamming can overcome the disadvatage of the two methods, utilizing the two-dimensional （2-D） coherentgain, the 2-D surface cover can be obtained for SAR, which can cover the distributed targets. The simulation results show that this method is more effective than conventional fixed shift frequency jamming and radom shift frequency jamming combining with modulation phase jamming.

谢春健, 李建周, 郭陈江, 许家栋. 基于Logistic混沌映射移频的SAR转发干扰方法[J]. Journal of Systems Engineering and Electronics, 2011, 33(10): 2210-2216.

XIE Chun-jian, LI Jian-zhou, GUO Chen-jiang, XU Jia-dong . Repeater jamming method for SAR based on logistic-map shift frequency[J]. Journal of Systems Engineering and Electronics, 2011, 33(10): 2210-2216.

基于Logistic混沌映射移频的SAR转发干扰方法

Repeater jamming method for SAR based on logistic-map shift frequency

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