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提出了一种Rice信道中利于译码检测的多网格编码调制(MTCM)设计方法及其译码算法——状态一符号序列译码.利用通常的Viterbi算法对MTCM符号序列进行最大似然译码非常复杂.基于MTCM符号序列设计上的特点。将译码过程分为状态序列检测和符号序列译码两步.符号序列的译码输出不必等到所有符号接收完毕.译码时延小;对于经过衰落信道后的MTCM符号序列,译码性能可以通过改变设计参数值来逼近最大似然算法,理论分析和仿真结果说明了这一特点.
A multi-trellis code modulation (MTCM) design method and its decoding algorithm-state-symbol sequence decoding, which is advantageous for decoding detection in Rice channel, is proposed.Using the usual Viterbi algorithm, the maximum likelihood of the MTCM symbol sequence is translated The code is very complex. Based on the design features of the MTCM symbol sequence. The decoding process is divided into state sequence detection and symbol sequence decoding two steps.Decode the symbol sequence output does not have to wait until all the symbols are received.Decoding delay is small.For fading channel MTCM symbol sequence, By changing the design parameters to approximate the maximum likelihood algorithm, theoretical analysis and simulation results illustrate this feature.