Search - low density parity check code

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[Software Engineering] ldpcgenerate_ber DL : 0: 关于低密度奇偶校验码的生成，采用matlab编写，主要是校验矩阵的产生 -on low-density parity-check code generation, prepared using Matlab, mainly for the selection of calibration matrix
Update : 2008-10-13 Size : 32.84kb Publisher : 若冰
[Communication] ldpc_distr DL : 0: LDPC码是Low Density Parity-check Codes的缩写，一个长为N的LDPC码由它的校验矩阵H来定义，该矩阵的特点是其中的元素0特别多，1特别少——即所谓的“低密度”。一个参数为（N，i，j）的H表示该矩阵中每列有i个1，每行有j个1，矩阵大小为N×K，N代表码字长度，K代表校验子的个数。 -LDPC code is the ab. of Low Density Parity-check Codes. A Length N LDPC is defined by its H matrix. The matrix has many zeros and few ones. which called "low density". An H matrix has a parameter as (N,i,j) express that it is the matrix which has i s 1 in each column ,j s one in each row, the size of the matrix is N*K,the N is the code word length ,k is the number of the checks.
Update : 2025-02-17 Size : 610kb Publisher : 姚中华
[Software Engineering] ldpcgenerate_ber DL : 0: 关于低密度奇偶校验码的生成，采用matlab编写，主要是校验矩阵的产生 -on low-density parity-check code generation, prepared using Matlab, mainly for the selection of calibration matrix
Update : 2025-02-17 Size : 33kb Publisher : 若冰
[matlab] LDPCFastDecoding DL : 0: 速度很快的低密度奇偶校验码的Matlab仿真程序-Fast low-density parity-check code of Matlab simulation program
Update : 2025-02-17 Size : 65kb Publisher : 陶雄飞
[Communication-Mobile] DECODE DL : 0: 低密度奇偶校验码即LDPC码的译码C程序，码长为16位-Low-density parity-check code that is decoding LDPC codes C procedures, code length of 16
Update : 2025-02-17 Size : 1kb Publisher : 赵天婵
[Communication] ldpc_v2.0 DL : 0: LDPC码是低密度奇偶校验码，是一种信道纠错检错码，最近关于该码的实现和应用研究非常流行，这里给出一个C语言实现的实际例子，希望有志于这方面研究的人喜欢。-LDPC code is a low-density parity-check code, is a channel error correcting code, the latest on the code and applied research and realize very popular here, gives a C language to achieve practical examples, I hope those who want to study in this area people like.
Update : 2025-02-17 Size : 164kb Publisher : 王晓丹
[Post-TeleCom sofeware systems] generating_matrix DL : 0: 低密度奇偶校验码中编码矩阵的c实现程序,不错-Low-density parity-check code encoding of the c matrix realize procedures, good
Update : 2025-02-17 Size : 1kb Publisher : luvicee
[SCM] ldpcber DL : 0: This LDPC software is intended as an introduction to LDPC codes computer based simulation. The pseudo-random irregular low density parity check matrix is based on Radford M. Neal’s programs collection, which can be found in [1]. While Neal’s collection is well documented, in my opinion, C source codes are still overwhelming, especially if you are not knowledgeable in C language. My software is written for MATLAB, which is more readable than C. You may also want to refer to another MATLAB based LDPC source codes in [2], which has different flavor of code-writing style (in fact Arun has error in his log-likelihood decoder). -This LDPC software is intended as an introduction to LDPC codes computer based simulation. The pseudo-random irregular low density parity check matrix is based on Radford M. Neal s programs collection, which can be found in [1]. While Neal s collection is well documented, in my opinion, C source codes are still overwhelming, especially if you are not knowledgeable in C language. My software is written for MATLAB, which is more readable than C. You may also want to refer to another MATLAB based LDPC source codes in [2], which has different flavor of code-writing style (in fact Arun has error in his log-likelihood decoder).
Update : 2025-02-17 Size : 7kb Publisher : 武博
[matlab] LDPC_BSN DL : 0: This LDPC software is intended as an introduction to LDPC codes computer based simulation. The pseudo-random irregular low density parity check matrix is based on Radford M. Neal’s programs collection, which can be found in [1]. While Neal’s collection is well documented, in my opinion, C source codes are still overwhelming, especially if you are not knowledgeable in C language. My software is written for MATLAB, which is more readable than C. You may also want to refer to another MATLAB based LDPC source codes in [2], which has different flavor of code-writing style (in fact Arun has error in his log-likelihood decoder). -This LDPC software is intended as an introduction to LDPC codes computer based simulation. The pseudo-random irregular low density parity check matrix is based on Radford M. Neal s programs collection, which can be found in [1]. While Neal s collection is well documented, in my opinion, C source codes are still overwhelming, especially if you are not knowledgeable in C language. My software is written for MATLAB, which is more readable than C. You may also want to refer to another MATLAB based LDPC source codes in [2], which has different flavor of code-writing style (in fact Arun has error in his log-likelihood decoder).
Update : 2025-02-17 Size : 116kb Publisher : 张强
[Communication] ldpc_encode DL : 0: 本程序是对低密度奇偶校验码的校验矩阵的源程序，相信会对研究ldpc码的人会很有帮助的-This procedure is a low-density parity check matrix of code source, I believe that research on LDPC codes will be very useful
Update : 2025-02-17 Size : 1kb Publisher : 李林
[matlab] LDPCBSN DL : 0: LDPC码既低密度奇偶校验码（Low Density Parity Check Code，LDPC），它由Robert G.Gallager博士于1963年提出的一类具有稀疏校验矩阵的线性分组码，不仅有逼近Shannon限的良好性能，而且译码复杂度较低, 结构灵活，是近年信道编码领域的研究热点，目前已广泛应用于深空通信、光纤通信、卫星数字视频和音频广播等领域。LDPC码已成为第四代通信系统(4G) -LDPC codes BER simulation under AWGN channel. MacKay-Neal based LDPC matrix. Message encoding uses sparse LU decomposition. There are 4 choices of decoder: hard-decision/bit-flip decoder, probability-domain SPA decoder, log-domain SPA decoder, and simplified log-domain SPA decoder.
Update : 2025-02-17 Size : 8kb Publisher : 天天
[Other systems] LLR_decoding DL : 0: 对数似然比测度下低密度奇偶检验码的译码算法，有很大的价值啊 -Log-likelihood ratio measure under the low-density parity check codes decoding algorithm, there is great value to ah
Update : 2025-02-17 Size : 92kb Publisher : 张力
[Other] L.decoding DL : 0: 如果你需要学习，然后利用低密度奇偶校验码完成课题，这是个好帮手。-Good assisstant for studying low density parity-check code
Update : 2025-02-17 Size : 1kb Publisher : 薛成功
[ELanguage] LowDensityParityCheckCode DL : 0: 有关可变码长LDPC编码电路的设计与实现的MATLAB编码程序的上传-LDPC Low Density Parity Check Code，LDPC
Update : 2025-02-17 Size : 2kb Publisher : YY
[Program doc] SIMUL_LDPC DL : 0: simulink for Low-density parity-check code
Update : 2025-02-17 Size : 748kb Publisher : thanhhavdt
[VHDL-FPGA-Verilog] Realization_of_FPGA_for_LDPC_encoding DL : 0: 低密度奇偶校验码(简称LDPC码)是目前距离香农限最近的一种线性纠错码，它的直接编码运算量较大，通常具有码长的二次方复杂度．为此，利用有效的校验矩阵，来降低编码的复杂度，同时研究利用大规模集成电路实现LDPC码的编码．在ISE 8．2软件平台上采用基于FPGA的Verilog HDL语言实现了有效的编码过程，为LDPC码的硬件实现和实际应用提供了依据-Abstract：Low．density parity·check code(LDPC code)is a kind of linear eror·correcting code nearest to Shannon Limit．For LDPC cod e，the computational overhead for direct encoding operations is large，as the complexity of encod ing is the square of the length of codeword．Hence，this paper reduces the complexity of coding by using effective parity—check matrix，and realizes the encoding device for LDPC code by use of large·scale integrated circuits．The effective encoding process based on FPGA with Verilog HDL language is implemented on ISE 8．2 software platform ，providing a feasible basis for hardware implementation an d practical application of LDPC code．
Update : 2025-02-17 Size : 162kb Publisher : 秦小星
[Windows Develop] ldpc_generate DL : 0: LDPC码即低密度奇偶校验码（Low Density Parity Check Code，LDPC），这是LDPC仿真中稀疏矩阵生成程序，我花了好几天的时间搞懂，并做了注释。 -LDPC codes that low-density parity check codes (Low Density Parity Check Code, LDPC), which is generated sparse matrix LDPC simulation program, I spent a few days time they get to know and do the comments.
Update : 2025-02-17 Size : 4kb Publisher : han
[matlab] LDPC DL : 0: Low Density Parity Check code is a error control code used in the DVBS2 standard codec
Update : 2025-02-17 Size : 83kb Publisher : rick
[Communication] LDPCCode DL : 0: 低密度奇偶校验码(LDPC)的编码与解码，采用C语言实现，一共包括3个文件-Low-density parity check code (LDPC) coding and decoding, using the C language, including a total of three files
Update : 2025-02-17 Size : 255kb Publisher : 张俊博
[Program doc] QC_LDPC-code-changes DL : 0: 提出了一种码率码长灵活变化的准循环低密度奇偶校验(Quasi - Cyclic Low Density Parity Check, QC - LDPC)码,利用构造出的H 矩阵可以达到较大的圈长( girth)值,并能在 girth值不变的前提下实现码率码长的灵活变化-Puts forward a bit rate code length of flexible change must circulation Low Density parity (Quasi-Cyclic Low Density Parity Check, QC-LDPC code), using the matrix can be constructed to larger H circle long (girth) value, and could be there The premise of girth values achieve bit rate yards long flexible changes
Update : 2025-02-17 Size : 348kb Publisher : 孟君

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