1.准备环境:首先,需要导入MATLAB的通信工具箱(Communications Toolbox)以及LDPC(Low-Density Parity-Check)码相关的库函数。 2.定义参数:准备CCSDS标准中定义的一些参数,如码长(N)、信息位数(K)和校验位数(M)。 3.生成校验矩阵和生成矩阵:使用函数如ccsdscheckmatrix生成校验矩阵,然后使用ccsdsgeneratematrix根据校验矩...
本脚本完成了CCSDS标准(o1)版本中适用于深空通信任务的LDPC编译码过程的仿真, 同时给出了在信息位长度为1024,码率为1/2时的误码率仿真结果 撰写人:*** 最后修改日期:2015-03-07 软件版本:MATLAB(R) 2014a 和之前版本(LDPC_Simulation.m)对比,本程序添加功能包括 完成了校验矩阵构造(ccsdscheckmatrix.m) 通过...
本脚本完成了CCSDS标准(o1)版本中适用于深空通信任务的LDPC编译码过程的仿真, 同时给出了在信息位长度为1024,码率为1/2时的误码率仿真结果 撰写人:*** 最后修改日期:2015-03-07 软件版本:MATLAB(R) 2014a 和之前版本( LDPC_Simulation.m)对比,本程序添加功能包括 1. 完成了校验矩阵构造(ccsdscheckmatrix.m...
tmWaveGen = ccsdsTMWaveformGenerator; tmWaveGen.WaveformSource = "synchronization and channel coding"; tmWaveGen.ChannelCoding = "LDPC"; tmWaveGen.NumBitsInInformationBlock = 1024; tmWaveGen.Modulation = "QPSK"; tmWaveGen.CodeRate = "1/2"; disp(tmWaveGen) ccsdsTMWaveformGenerator with prope...
(cfgParams.FECCode,"BCH-LDPC") % Initialize parameters for LDPC encoding parityMatrix = dvbsLDPCPCM(cfgParams.LDPCCodeRate); ldpcCfg = ldpcEncoderConfig(parityMatrix); end % Initialize parameters for Convolutional interleaver FECLen = 64800; % In bits S = FECLen/cfgParams.SymbolSize; N = ...
(Low Density Parity Check Code, LDPCC)不仅具有逼近 Shannon 限的良好性能,而且译码复杂度低,速率较高,是能够胜任高速数据传输系统的热点信道编 码技术,LDPC码有多种校验矩阵构造方法和编码算法,本文介绍了 NASA 发布的 CCSDS标准 中构造 LDPC 码的校验矩阵方法及基于其准循环特性的快速编码算法,节约了稀疏矩阵...
Matlab simulation ccsds_ldpc_a_H.m: generates the 8176 x 1022 parity check matrix H for the CCSDS C2 family LDPC code with rate 223/255, as per [1], section 7.3 ccsds_ldpc_a_G.m: constructs the generator matrix G for the CCSDS C2 family LDPC code with rate 223/255, as per [1...
To enable this name-value pair, set theChannelCodingproperty of thecfginput to"LDPC". Data Types:double Output Arguments collapse all bits— Recovered transfer frames cell array of column vectors Recovered transfer frames, returned as a cell array of column vectors. Each element of the cell arra...
10, 2016 –Creonic GmbH today announced immediate availability of the new CCSDS AR4JA LDPC encoder and decoder IP core, following initial delivery to the first customer. The new core provides block length and code rate flexibility, complementing the field-proven CCSDS LDPC (8160, 7136) encoder ...
CCSDS标准下低码率LDPC码的编码器设计 龚杨阳;安军社;朱岩 【摘要】An encoder architecture is proposed to implement 1/2,2/3,4/5 rates LDPC codes based on the Consultative Committee for Space Data Systems standards. According to block cycle characteristics of the generation matrix, we used a feed...