用LDPC造句子，“LDPC”造句
Performance of LDPC-Coded IDMA System;
Research of LDPC Decoding Based on Modified LLR BP Algorithm
Application Research of LDPC in Free Space Opticl;
LDPC check matrix function claims that can be generated in accordance with the corresponding distribution check matrix, for a very long code length LDPC.
Design and implementation of a high-throughput decoder for multi-rate LDPC code
The Research on the Concatenated LDPC Coding and Space-Time Multiple Input Multiple Output System for Wireless Communications;
Study on the Construction Method of Quasi-Cyclic LDPC Codes Based on Progressive Edge-Growth (PEG) Algorithm
Performance of Optical Wireless Communication System Basing on the Sub-Carrier PSK Intensity Modulation and LDPC Code
针对此系统,提出了简化的LDPC码编码调制译码初始化算法。
矩阵LDPC码不同于现有其它结构LDPC码的独特之处在于，对码长和码率参数的设计具有高度灵活*，使其能与现有标准兼容。
提出了一种基于置换矩阵的非规则低密度奇偶校验（LDPC）码的校验矩阵设计方法。
中短长度LDPC码在采用BP算法译码时，由于短环的存在会导致某些比特llr值出现振荡现象，从而影响了译码*能。
Design of Array LDPC Decoder
Principles and Code-Design of LDPC Codes;
Research on Joint Source-Channel Coding Using LDPC Code;
Research on the Hight Efficient Encoding/Decoding Technique for LDPC Codes and Serially Concatenated LDPC/Convolutional Codes;
Principles of the Codec for LDPC Codes and Its Hardware Implementation;
Shift Auto-Correlation Frequency Offset Correction of MIMO-OFDM System in Frequency Domain and LDPC New Parameter Decoding;
Based on some characteristics of decoding and error-floors of low-density parity-check (LDPC) codes, an approach of adding vertical parity-check blocks to original LDPC blocks over GF (2) is proposed.
And in the last section of chapter3, we present a "quasi-cyclic LDPC based" code division scheme, which can be possibly applied to the adaptive coding.
该译码器可兼容多种码长、多种码率的LDPC码，因此只需要设计一个译码器，就可以完成对具有相同列重的不同LDPC码的译码。
针对已有ARA码译码复杂度较高的问题，结合空间通信的特点，构造了一族新的基于原型图的码率兼容LDPC码。
Researches on Simple-encoding LDPC Codes
Digital AGC input-matching circuit for soft-decision LDPC Decoders
A Semi-Random Construction of Linear Encoding LDPC Codes and Its Simulation
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。
水印嵌入之前进行随机置换与LDPC编码增强了水印抗攻击能力。
在用循环置换矩阵构造准循环LDPC码时会出现一类无法消除的环，称为平衡环。
An FPGA Implementation of QC-LDPC Decoder
Modified LDPC BF Decoding Algorithm Based on Reliability Ratio
QC-LDPC codes constructed by circulant permutation matrices will lead to inevitable cycles, named balanced-cycles.
Density evolution (DE) is one of the most powerful tools for analyzing the performance of low-density parity - check (LDPC) codes.
一百而LDPC码*能的优劣，与其二分图中是否存在短长度的圈有关，也即与其奇偶校验矩阵的构造有关。
According to Chen's master thesis, LDPC coded MIMO using interblock memory outperform LDPC coded MIMO without interblock memory in some short code-length conditions.
讨论了准循环低密度校验码(QC - LDPC)在浅海水声信道中的实现方案。
An improved BP quantum LDPC decoding algorithm
For short and middle length LDPC codes, the oscillation of LLR owing to cycles degrades the performance of BP algorithm.
Research on the Turbo, LDPC Encoding/Decoding and Implementation of LDPC Decoding;
对准循环Q矩阵和完全循环差集进行了研究，在此基础上提出了一种LDPC码码族的代数构造方法
Research and Improvement on IRA-LDPC Decoding Algorithm in DVB-S2
*结果表明：中短帧情况下，由PEG因子图编码的四进制LDPC码的*能明显好于随机编码的四进制LDPC码的*能。
