-
公开(公告)号：KR101265636B1
公开(公告)日：2013-05-22
申请号：KR1020070011127
申请日：2007-02-02
Applicant: 엘지전자 주식회사 , 서울대학교산학협력단
Abstract: 본발명은상술한목적을달성하기위해, 채널로부터 LDPC 부호화된신호를수신하는단계; 둘이상의쉬프트수(shift number)가중첩된모델행렬에기초하여검사노드갱신(check node update)과변수노드갱신(variable node update)을반복수행하는단계; 상기검사노드갱신과변수노드갱신에의한결과값을기초로복호값을결정하는단계; 및상기결정된복호값에대한검사를수행하는단계를포함하는특징이있다.
-
公开(公告)号：KR101216735B1
公开(公告)日：2012-12-28
申请号：KR1020100086494
申请日：2010-09-03
Applicant: 서울대학교산학협력단
IPC: H03M13/11
CPC classification number: H03M13/2909 , H03M13/1102 , H03M13/19 , H03M13/2927
Abstract: 복호장치가프로덕트부호의부호어행렬을복호하는방법이제공된다. 프로덕트부호의부호어행렬을복호하는방법은수직부호에대한제1 확장패리티체크행렬을생성하는단계, 상기부호어행렬내의복수의행의수평부호어를각각제1 복호하는단계, 상기제1 복호에성공한수평부호어의행에해당하는열을상기제1 확장패리티체크행렬로부터제거하여제2 확장패리티체크행렬을생성하는단계, 그리고상기제2 확장패리티체크행렬을이용하여상기제1 복호에실패한수평부호어를제2 복호하는단계를포함한다. 이에따라, 간단하고신뢰도높은프로덕트부호의복호방법이제공될수 있다.
-
公开(公告)号：KR1020120023403A
公开(公告)日：2012-03-13
申请号：KR1020100086494
申请日：2010-09-03
Applicant: 서울대학교산학협력단
IPC: H03M13/11
CPC classification number: H03M13/2909 , H03M13/1102 , H03M13/19 , H03M13/2927
Abstract: PURPOSE: A decoding method of a product code and an apparatus thereof are provided to make decoding result of very low error rate by reducing the complexity of calculation during a process of decoding the codeword matrix of the product code. CONSTITUTION: A decoding device selects soft-decision information of a horizontal code word as one soft-decision information about a decoding-failed horizontal code word. The soft-decision information is already calculated from the channel receiving information. The decoding device extracts another soft-decision information about horizontal code words using hard decision information of horizontal code words which are successfully decoded and the soft-decision information of other horizontal code words which are decoding-failed. The decoding device re-decodes the horizontal code words by adding two soft-decision information on the horizontal code words. The decoding device eliminates the matrix corresponding to the decoding success from a second expansion parity check matrix.
Abstract translation: 目的：提供一种产品代码的解码方法及其装置，通过在对产品代码的码字矩阵进行解码的过程中降低计算的复杂度来使得错误率非常低的解码结果。 构成：解码装置选择水平码字的软判决信息作为解码失败的水平码字的一个软决策信息。 已经从信道接收信息计算出软判决信息。 解码装置使用成功解码的水平码字的硬判决信息和解码失败的其他水平码字的软判决信息，提取关于水平码字的另一软判决信息。 解码装置通过在水平码字上添加两个软判决信息来重新解码水平码字。 解码装置从第二扩展奇偶校验矩阵中消除与解码成功相对应的矩阵。
-
公开(公告)号：KR1020080072406A
公开(公告)日：2008-08-06
申请号：KR1020070011127
申请日：2007-02-02
Applicant: 엘지전자 주식회사 , 서울대학교산학협력단
CPC classification number: H03M13/1105 , H03M13/1148 , H04L1/0057
Abstract: A method of performing LDPC(Low-Density Parity-Check codes) decoding using a model matrix is provided to perform a decoding process by using the model matrix having high performance. A method of performing LDPC decoding using a model matrix comprises the following steps of: receiving an LDPC coded signal from a channel; iteratively performing a check node update and a variable node update based on the model matrix in which at least two shift numbers are superposed; determining a decoding value based on result values of the check node update and the variable node update; and performing a check for the determined decoding value. The step of performing the check node update includes the step of performing data processing to reflect an operation result processed through at least one among a plurality of edges formed with a superposition structure to a corresponding variable node memory(2001,2002,2003).
Abstract translation: 提供使用模型矩阵执行LDPC（低密度奇偶校验码）解码的方法，以通过使用具有高性能的模型矩阵来执行解码处理。 使用模型矩阵执行LDPC解码的方法包括以下步骤：从信道接收LDPC编码信号; 基于叠加了至少两个移位号的模型矩阵迭代地执行校验节点更新和变量节点更新; 基于所述校验节点更新和所述变量节点更新的结果值来确定解码值; 并对所确定的解码值进行检查。 执行校验节点更新的步骤包括执行数据处理以将通过叠加形成的多个边缘中的至少一个处理的操作结果反映到对应的可变节点存储器的步骤（2001,2002,2003）。
-
-
-
Search Results
4
records
(took 0.017 seconds)
