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matlab实现卷积编码与viterbi译码
... 10; %SNR范围
N = 1000000; %消息比特个数
M = 2; %BPSK调制
L = 7; %约束长度
tre1 = poly2trellis(L,[171 133]); %卷积码的生成多项式
tblen = 6*L; %Viterbi译码器回溯深度
msg = randi([0,1],1,N); %消息比特序列
msg1 = convenc(msg,tre1); %卷积编码
x1 = pskmod(msg1,M); %BPSK调制
for ii=1:length(EbN0)
ii ...
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基于Xilinx FPGA的高速Viterbi回溯译码器
摘 要：分析了新一代通信系统的发展对Viterbi译码器速率提出了更高的要求，通过优化 ... 译码器结构，在XilinxVirtexIIPFGA上实现了速率30Mb／s以上的256状态Viterbi软译码。关键词：Viterbi；回溯译码；FPGA；双端口BlockRam 新一代移动通信系统目前主要采用多 ... 速率能达到30Mb／s以上。约束长度卷积码以及Viterbi译码器由于其性能和实现的优点，在新一代通信系统中仍然占有一席之地。这就要求进一步提高Viterbi译码器的译码速率，同时优化Viterbi设计以减少由 ...
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Algorithm-Viterbi
... as POD and extensive in-code comments, see those for
information on the usage of the module.
Bugs, feedback, whatever can be sent to the author on arnsholt@gmail.com, or
on the project's GitHub pages: http://github.com/arnsholt/Algorithm-Viterbi
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penn-parser-cyk-viterbi
... .02-21.training -cyk
```
Quick start to parse and run Viterbi on a file of sentences:
```bash
$ python run.py - ... as a string
* `viterbi_parse`, return the parse generated by Viterbi probabilities
Written for Elements of Language Processing and Learning ...
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Viterbi-Tagger
...
Python implementation of a hidden markov model that uses the viterbi algorithm.
icvtag.py is a toy example that runs on ... tagging/ic* data. These datasets correspond with Jason Eisner's viterbi spreadsheet, found here:
http://www.cs.jhu.edu/~jason/papers ...
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viterbi
... core modification
Follow next short HOW-TO for replace GNURadio-core Viterbi lib
If you are interesting to use gr-fec packakage ... will need to modify and reinstall gnuradio-core with new viterbi.c, viterbi.h sources.
1) cd to gnuradio/gnuradio-core
2) ...
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