TD-SCDMA系统中Viterbi算法研究与改进  

Study on Viterbi Algorithm in the TD-SCDMA System

作　　者：彭伟智[1] 李小文[1] 

机构地区：[1]重庆邮电大学通信与信息工程学院,重庆400065

出　　处：《通信技术》2007年第11期105-106,109,共3页Communications Technology

摘　　要：文中首先简单地说明Viterbi译码算法原理,接着分析Viterbi译码算法设计及伪代码实现,然后根据软判决和硬判决对译码性能的影响以及改进的译码器和MATLAB库函数的译码器作了仿真比较。仿真表明:改进的译码器具有良好的性能。In this paper, the principle of Viterbi is briefed first. Then the Viterbi decode design and Pseudo Code for the Viterbi Algorithm areanalyzed. Finally the capability of soft and hard decisions is compared, and the capability of ameliorated decoder and MATLAB library emulated. Simulations show that the ameliorated decoder is robust and of better performance.

关 键 词：VITERBI译码 软判决 硬判决 MATLAB 

分 类 号：TN929.5[电子电信—通信与信息系统]