| 基于Logistic混沌映射移频的SAR转发干扰方法 |
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| 引用本文： | 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].系统工程与电子技术,2011,33(10):2210-2216. |
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| 作者姓名： | 谢春健 李建周 郭陈江 许家栋 |
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| 作者单位： | 西北工业大学电子信息学院， 陕西 西安 710071 |
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| 基金项目： | 西北工业大学基础研究基金(JC200939)资助课题 |
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| 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。
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| 关 键 词： | 合成孔径雷达 混沌序列 移频干扰 调相干扰 转发干扰 |
Repeater jamming method for SAR based on logistic-map shift frequency |
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| XIE Chun-jian,LI Jian-zhou,GUO Chen-jiang,XU Jia-dong.Repeater jamming method for SAR based on logistic-map shift frequency[J].System Engineering and Electronics,2011,33(10):2210-2216. |
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| Authors: | XIE Chun-jian LI Jian-zhou GUO Chen-jiang XU Jia-dong |
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| Institution: | XIE Chun-jian,LI Jian-zhou,GUO Chen-jiang,XU Jia-dong (School of Electronics and Information,Northwestern Polytechnical University,Xi'an 710071,China) |
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| 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 tar... |
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| Keywords: | synthetic aperture radar(SAR) chaos sequence shift frequency jamming modulation phase jamming repeater jamming |
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