反馈译码 meaning in English
feedback decoding
Examples
- The performance of tcm over awgn channel is perfect but it is bad over fading channel . there is an effective method to solve this problem that combines interleave technique with coded modulation to get the gain of performance over fading channel . this paper is about a new coded modulation technique ? ? bicm ( bit interleaved coded modulation ) and bicm _ id ( bicm with iterative decoding ) , and their performance of bit error rate in different conditions
本文研究的就是一种将交织技术与编码调制相结合的新的编码调制方式? ?比特交织编码调制( bicm , bitinterleavedcodedmodulation ) ,和引入迭代反馈译码的比特交织编码调制( bicm _ id , bicmwithiterativedecoding ) ,及它们在不同信道条件下的性能。 - Second , this paper design the simulation scheme of bicm for comparing the performance over fading channel and awgn channel that combine 2 / 3 rate , 4 states punctured convolutional code with 8psk modulation , matching block interleave or random interleave , transform through rayleigh channel or awgn channel and use the way that combine coherent demodulation with viterbi decoding in receiver . design the scheme of bicm _ id that use the iterative decoding technique and the scheme of tcm for compare
为了验证bicm和bicm _ id在衰落信道和加性高斯白噪声信道( awgn )下的性能,设计了一个2 / 3码率, 4状态的凿孔卷积码经过块交织或随机交织,与8psk调制相结合,在rayleigh信道下或awgn信道下传输,接收端采用相干解调与维特比译码相结合的bicm方案,在接收端引入迭代反馈译码的bicm _ id方案,以及与之相比较的tcm方案。