串行级联CPM基于SOVA算法的迭代接收  

Iterative Receiving Based on SOVA Algorithm for Serially Concatenated CPM

作　　者：李小强[1] 芮茂海[1] 王德辉[1] 曾辉[1] 

机构地区：[1]总参谋部通信训练基地,河北宣化075100

出　　处：《军事通信技术》2009年第3期51-54,58,共5页Journal of Military Communications Technology

摘　　要：文中研究了CPM的特性,提出并证明了连续相位编码器(CPE)编码特性定理,并就此对SOVA算法进行了改进;实现了串行级联部分响应CPM基于SOVA算法的迭代接收,大大降低了串行级联CPM迭代接收的复杂度;最后利用计算机对基于LOG-MAP、MAX-LOG-MAP和改进的SOVA三种算法的串行级联CPM的迭代接收分别进行了仿真。仿真结果表明串行级联CPM基于SOVA算法的迭代译码和基于MAX-LOG-MAP算法的迭代译码的性能非常接近,在文中的仿真条件下当误比特率达到10-5时比特信噪比仅相差约0.1 dB。The characteristic of CPM was investigated.A theorem about continuous phase encoder(CPE) was proposed and proved to be right.The customary SOVA algorithm was improved with this theorem,and iterative receiving based on SOVA algorithm for serially concatenated partial response CPM implemented.Finally,iterative receiving based on LOG-MAP algorithm,MAX-LOG-MAP algorithm and improved SOVA algorithm for SCCPM were simulated with computer.Simulation results show that the performance of iterative receiving based on...

关 键 词：连续相位调制 串行级联连续相位调制 软输出维特比算法 

分 类 号：TN911.3[电子电信—通信与信息系统]