Viterbi译码算法在55系列DSP上的C语言实现  

C Language Implementation of Viterbi Decoding Algorithm in 55x DSP

作　　者：郭勇 邵凝宁 

机构地区：[1]南京北方信息控制集团有限公司产品研发中心,江苏南京211153

出　　处：《无线电通信技术》2013年第2期79-82,共4页Radio Communications Technology

摘　　要：为了在DSP中实现Viterbi译码,用C语言编程实现了一种全并行连续译码的Viterbi译码算法。其各功能模块用函数设计,纠错性能的测试和验证采用文件读写的方法,便于处理大容量的编译码数据,且能容易地修改错误的形式。仿真测试结果表明,该Viterbi译码算法的纠错性能完全达到甚至优于Viterbi理论算法纠错性能的极限,采用C语言设计,程序可读性好,且便于在不同系列DSP平台之间移植。In order to implement the Viterbi Decoding in DSP, the thesis introduces the continuous full-parallel Viterbi decoding algorithm via C-language programming. All functional modules can be designed by C-language programming. To test and validate the error-correcting ability, the thesis adopts the method of file reading and writing. The method can deal with mass coding and decoding data, and easily modify the error style. The simulation results indicate the error - correcting ability of Viterbi Algorithm designed absolutely achieves the theoretic error - correcting ability limit, and even is superior to the theoretic error - correcting ability. The C - language program designed can be easily read and understood,and has high portability in different DSP＇ s.

关 键 词：VITERBI译码算法 文件读写操作 C语言编程 纠错性能验证 

分 类 号：TN911.22[电子电信—通信与信息系统]