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Description: LDPC译码算法，采用优化算法APP LLR-LDPC decoding algorithm using optimization algorithms APP NBC
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Size: 1024 |
Author: 陈小车 |
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Description: 这是国标数字电视地面传输标准里信道编解码器的MATLAB程序，用的是LLR-BP的解码算法，请大家指正。另有根据国标生成的生成矩阵和校验矩阵稍后传上来-This is the national standard of digital TV terrestrial transmission standard in channel codec MATLAB program, using the LLR-BP decoding algorithm, please correct me. Otherwise in accordance with GB-generated matrix and calibration matrix generation later Chuan-up
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Size: 1024 |
Author: 权大广 |
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Description: 实现ldpc的编译码功能，译码算法使用的对数域bp译码算法-LDPC codec realize the function of decoding algorithm used in log-domain decoding algorithm bp
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Size: 5120 |
Author: 季艳中 |
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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编解码程序，以MATLAB为其开发环境，采用的是LLR BP译码，对LDPC码编程有帮助。-codec lDPC procedures to MATLAB for their development environment, using the LLR BP decoding of LDPC codes assist programming there is.
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Size: 496640 |
Author: 宋时立 |
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Description: 有关ldpc llr bp译码算法，在awgn信道下的仿真比较-ldcp decoding llr bp in awgn channer
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Size: 2048 |
Author: 冯小晶 |
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Description: 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: 2048 |
Author: Ahsan Ali |
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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: LDPC码的软判决译码算法，概率域LLR—BP算法，其中，概率信息以对数似然比的形式表示。-The decoding algorithm of LDPC . The LLP-BP algorithm of probability field,in which,the probability informationv expressed by the form of log likelihood ratio.
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Size: 15360 |
Author: 玄川鹤 |
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Description: 采用对数域消息传递算法（LLRBP）的LDPC码译码方案，用matlab程序编写。-Logarithmic domain message passing algorithm (LLR BP) LDPC code decoding program, a program written in matlab.
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Size: 9216 |
Author: chenxiaowen |
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Description: 该代码是实现LDPC编译码的C语言实现，编码采用的IRA LDPC编码算法，而译码采用的是对数域上的BP算法（LLR BP 算法），该代码先是实现了LDPC代码的编码过程，然后在通过LLR BP算法一步一步实现译码过程。译码主要过程有：初始化过程，校验节点更新过程，比特节点更新过程，最后进行译码判决，如果满足译码要求或者达到迭代最大次数则退出，否则返回到校验节点更新继续往下循环执行。(This code is to achieve the LDPC code by the C language, use IRA LDPC encoding algorithm , decode is LLR BP algorithm, first of all, the code is to achieve the encoding process of LDPC code, and then one step by step to achieve the decoding process through the LLR BP algorithm. The main process of decoding: initialization process, check node update process, bit node update process, finally decoding judgment, if meet the requirements or the maximum number of iterative decoding is out, or return to the check node update continued execution cycle.)
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Size: 805888 |
Author: tmh
|
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Description: 本文首先介绍了几种LDPC码的编译码算法，同时推导了译码错误概率和密度进化
过程，讨论了信道参数的门限效应。接着对LDPC码二分图中长度为4的环进行了深入
研究，提出了一种LDPC码校验矩阵的消4一环生成算法，采用Matlab和VC++融合编程
方式，完成了此算法的程序设计。此算法不仅可生成二进制LDPC码的校验矩阵，并且
对算法修正后，也可生成多进制LDPC码的校验矩阵。采用此算法后可避免LDPC码译
码过程中的重复迭代，显著提高了短帧LDPC码的误比特率性能。同时对不同参数对
LDPC码性能的影响进行了仿真，得到了一些结论。最后，利用VHDL语言在复杂可编
程逻辑器件(CPLD)上完成了LDPC码编码器的硬件实现。另外，给出了LDPC码译
码器硬件实现的整体结构图，结合对数似然比域内的置信传播迭代译码(LLR-BP)算
法，对译码器的各个模块进行了详细阐述。(Research and implementation of LDPC coding and decoding technology)
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Size: 1247232 |
Author: 斯蓝蓝 |
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