实现Viterbi译码器幸存路径存储及译码输出的一种新方法  

Novel Approach to the Survivor Memory and Decode Out in Viterbi Decoder FPGA Designing

作　　者：付永庆[1] 孙晓岩[1] 李福昌[1] 

机构地区：[1]哈尔滨工程大学信息与通信工程学院,黑龙江哈尔滨150001

出　　处：《应用科技》2003年第3期25-26,32,共3页Applied Science and Technology

摘　　要：提出了一种幸存路径存储及输出的新方法———SMDO法,该方法与传统的寄存器交换法和回索法相比具有存储量小、译码延迟短的特点,并且极适合利用FPGA内置的EAB块实现。In this paper a novel approach to the survivor memory and decoding out put outSMDO method was presented. Compared with the traditional techniquesregister exchange(RE) and trace back(TB), this method needs smaller memory and shorter decoding delay. It's very suitable for FPGA implementation.

关 键 词：VITERBI译码器 幸存路径存储 维特比译码器 现场可编程门阵列 译码输出 

分 类 号：TN918.3[电子电信—通信与信息系统]