基于CPM的部分带干扰抑制技术  

A New Technique for Suppressing Partial Band Noise Jamming in Continuous Phase Modulation Systems

作　　者：贾儒鹏[1] 周军[1] 李强[2] 

机构地区：[1]中国电子科技集团公司第三十研究所,四川成都610041 [2]电子科技大学通信抗干扰技术国家级重点实验室,四川成都610054

出　　处：《信息安全与通信保密》2011年第7期33-36,共4页Information Security and Communications Privacy

摘　　要：提出了一种空时编码慢跳频连续相位调制(CPM)系统用于抗部分带噪声干扰。由于CPM信号的内在记忆性,传统的检测方法复杂度较高,结合Laurent分解和差分预编码方法部分消除了CPM信号的内在记忆性,提出了一种软输入软输出的线性接收机,联合信道译码进行迭代检测,大大降低了接收机的复杂度并且提高了系统的抗干扰性能。最后,利用迭代干扰状态信息(JSI)估计,进一步改善了系统的抗干扰性能。A space-time coded Slow Frequency Hopping Continuous Phase Modulation（CPM） system for anti-partial band noise jamming is proposed. For the inner memory of CPM signals,traditional detector is too high in complexity. Combined with Laurent decomposition,differential preceding is applied for eliminating the memory of CPM. Then a soft-input soft-output linear receiver is proposed,and jointed with channel decoder,its complexity is decreased and the performance of anti-jamming is improved by iterative detection. The jammer state information（JSI） estimated by iterative estimation is applied for detection,thus further improving anti-jamming performance of the system.

关 键 词：空时编码 跳频 连续相位调制 

分 类 号：TN919.4[电子电信—通信与信息系统]