Turbo-DFH迭代译码算法  

Iterative Decoding Algorithm for Turbo-DFH System

作　　者：裴小东[1] 何遵文[1] 匡镜明[1] 

机构地区：[1]北京理工大学信息科学技术学院电子工程系,北京海淀区100081

出　　处：《电子科技大学学报》2007年第1期57-59,共3页Journal of University of Electronic Science and Technology of China

摘　　要：针对Turbo-DFH系统的特点,提出了修改的SOVA算法,用于迭代译码过程中子译码器软输出的计算。在AWGN信道下,对Turbo-DFH系统的性能进行了计算机仿真。仿真结果表明Turbo-DFH系统的误比特率性能比采用维特比检测算法的传统DFH系统有明显改善。An iterative structure is adopted to decode the codes at the decoder. A modified SOVA algorithm is presented, which is used to compute the soft output of the component decoders. The performance of the turbo-DFH system is simulated over AWGN channels. Simulation results show that the bit error rate performance of the turbo-DFH system is significantly better than that of the conventional DFH system with the Viterbi detection algorithm.

关 键 词：TURBO码 迭代译码 差分跳频 频率转移函数 

分 类 号：TN97[电子电信—信号与信息处理]