基于改进Carroll法的转发干扰对抗方法  

A Nonlinear Method Against Repeater Jamming Based on Improved Carroll

作　　者：蔡天一[1] 曾维贵[1] 吴杰[1] 

机构地区：[1]海军航空工程学院,山东烟台264001

出　　处：《现代防御技术》2013年第5期93-99,共7页Modern Defence Technology

摘　　要：为克服传统抗转发干扰方法依赖干扰样式和对DRFM量化位数、采样频率敏感的不足,首次采用非线性动力学理论中的Carroll法分析转发干扰信号和雷达信号的差别,并对Carroll法进行了修正。实验结果表明,算法有效地克服了原Carroll法在处理随机跳频信号方面的不足,能够可靠区分雷达和干扰信号,说明所提出的方法克服了以往方法的缺陷,并且是可行的,为抗转发干扰研究提供了新的思路。In order to solve the problem that traditional anti-repeater jamming methods are dependent on the form of jamming and being vulnerable to digital radio frequency memory （DRFM） quantization bits and sample frequency, a nonlinear method-Carroll algorithm is adopted for the first time to analyze the difference between radar echo and jamming signal, and a new algorithm by correcting the Carroll algo- rithm is proposed. Experiment results prove that the proposed algorithm performs better with random fre- quency hopping signal than Carroll algorithm, and can distinguish between echo and jamming signals. The proposed algorithm overcomes the disadvantages of traditional methods and provides a new way for anti-repeater jamming research.

关 键 词：转发干扰 Carroll法 相空间 

分 类 号：TN974[电子电信—信号与信息处理]