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Description: CMMB中ldpc编码器的verilog代码 CMMB中的ldpc编码器采用H矩阵的做法进行 编码，通过对H矩阵的分解进行迭代进行 编码，比较复杂。此代码为发射端的源代码， 已经应用。
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Size: 1700863 |
Author: swordmerry |
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Description: 经典Davey著作中
ldpc部分仿真程序-classic works part ldpc Simulation Program
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Size: 367616 |
Author: 屈兰 |
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Description: gen_H:利用随机pi矩阵排列而成的LDPC稀疏校验矩阵产生；
girthlenth：计算产生的矩阵H的围长-gen_H : pi using random matrix arranged at the LDPC have sparse matrix calibration; girthlenth : calculation of the matrix H Girth
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Size: 2048 |
Author: 喻小星 |
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Description: 生成一个规则LDPC码的教研矩阵H，其行数(越大越好)为列数的一半，行重为6，列重为3，任意两行没有围长为4的圈
使用方法：H=HGrandom2(m,n)。m表示行数，n表示列数-rules of a generation of research LDPC matrix H, its (larger the better) half of the series, re-6, series of three, two arbitrary line is not girth of the ring used four methods : H = HGrandom2 (m, n). Said a few m, n Columns
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Size: 2048 |
Author: 心海 |
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Description: LDPC研究者MacKay提供的校验矩阵H和对应的G，其中H的行重12，列重6，行数504，列数1008，任意两行不含围长为4的圈-LDPC researchers MacKay, the calibration matrix corresponding to the H and G, in which the re-H 12, series 6, a few 504, cited 1008, the two firms were non-arbitrary girth to the ring 4
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Size: 61440 |
Author: 心海 |
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Description: ldpc码的matlab仿真程序，信息序列较小，但仿真效果好。-LDPC codes matlab simulation program, the information sequence of smaller, but better simulation effect.
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Size: 246784 |
Author: xiaoxuena |
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Description: LDPC码校验矩阵声称函数，可以根据度分布生成相应的校验矩阵，适用于码长很长的LDPC.-LDPC check matrix function claims that can be generated in accordance with the corresponding distribution check matrix, for a very long code length LDPC.
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Size: 2048 |
Author: xingang |
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Description: ofdm + ldpc 再高斯信道的应用-ofdm+ ldpc further the application of Gaussian channel
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Size: 311296 |
Author: 王果 |
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Description: Mackey1随机构造LDPC码的校验矩阵进行编译码的仿真过程（其中译码算法采用置信传播算法）-err
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Size: 18432 |
Author: 刘彩苗 |
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Description: LDPC码编译码源程序，可生成任意非规则二进制校验矩阵，并可进行LLR BP译码-LDPC codec source code can be generated non-arbitrary rules binary check matrix, LLR BP decoding can be carried out
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Size: 7168 |
Author: wwwwomen |
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Description: LDPC encoder and decoder matlab source code
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Size: 678912 |
Author: Ying Tian |
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Description: LDPC matrix generation
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Size: 207872 |
Author: hcui |
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Description: LDPC码H矩阵构造的三种尝试，包括比特填充法、PEG法和近似最短环路法（ACE）的实践-This document includes three methods to implement LDPC H matrix construction. Please enjoy them!
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Size: 12288 |
Author: david duan |
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Description: ldpc码在AWGN信道下的性能仿真。包括geth.m,getG.m,H2G.m,decode.m,BER.m按传统的编码方案编码，生成H矩阵后转化为G矩阵，编码后送入高斯信道。仿真得到BER性能-ldpc codes in the AWGN channel performance simulation. Including geth.m, getG.m, H2G.m, decode.m, BER.m coded according to the traditional encoding scheme to generate H matrix is transformed into G matrix encoded into the Gaussian channel. Simulation, the BER performance
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Size: 68608 |
Author: 熊路 |
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Description: ldpc编码，随机生成H矩阵，LLR-BP算法译码，有我详细的注解，非常详尽-ldpc coding, randomly generated H matrix, LLR-BP decoding algorithm, with my detailed notes, very detailed
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Size: 29696 |
Author: haha |
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Description: 这是关于LDPC信道编码模块设计的程序
打开源程序，先运行gengrate_h.m程序，陆续将码长设置为756bit，列重设置为3，行重设置为9。在Workspace中同时将H、A、B、C、D、E、Hget、Fget、g、Tget这是个变量选择另存为encode_in.mat 格式。再运行main_encode.m进行编码，主程序运行后，在当前目录下，自动生成编码结果文件“encode—out.mat”，这将作为下一次扩频调制仿真实验的的输入信号。最后分别查看Workspace中的变量s（编码前数据）和xyuan（编码后数据）的波形。
对比后，可以看出编码前的数据码片长度为504bit，编码后的码片数据长度为756bit。编码效率=编码前码片长度/编码后码片长度=2/3。-This is about the LDPC channel coding module design process
Open source, first run gengrate_h.m program, phasing out the code length is set to 756bit, column re-set to 3, line weight is set to 9. In the Workspace in the same time, H, A, B, C, D, E, Hget, Fget, g, Tget This is a variable select Save As encode_in.mat format. Then run main_encode.m encoding, the main program running in the current directory, the results of automatically generated code file "encode-out.mat", which will serve as the next simulation of the spread spectrum modulation input signal. Finally, the variables were View Workspace in s (before encoding data) and xyuan (encoded data) waveform.
After comparison, we can see the data before encoding chip length of 504bit, encoded data length of chip 756bit. Coded before coding efficiency = chip length/length of the encoded chip = 2/3.
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Size: 15360 |
Author: 吴健 |
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Description: 用来生成LDPC的H矩阵，并采用BP译码，很不错的程序-Used to generate the LDPC H-matrix, and the use of BP decoding, very good program
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Size: 117760 |
Author: 不知道 |
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Description: LDPC信道编码仿真。generate_h.m生成校验矩阵H。用main_encode.m程序载入校验矩阵信息，用encode.m进行编码。(LDPC channel coding simulation. Generate_h.m generates parity check matrix H. Load the check matrix information with main_encode.m program and encode with encode.m.)
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Size: 15360 |
Author: ZhaoK
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Description: 用MATLAB实现LDPC校验矩阵H的构造(The construction of LDPC check matrix H with MATLAB)
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Size: 2048 |
Author: yang180418 |
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Description: LDPC-PEG算法构造H矩阵 LDPC码最早在20世纪60年代由Gallager在他的博士论文中提出,但限于当时的技术条件,缺乏可行的译码(PEG Construction Algorithms for LDPC Codes)
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Size: 1024 |
Author: 程序开发1 |
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