The encoding and decoding algorithm of LDPC Codes.
LDPC码的编码和译码算法。
Those contents are useful for the implementation of LDPC.
这些内容对于LDPC编译码的实现有一定的指导意义。
Finally, the optimization of the LDPC codes in the DSTC systems is discussed.
最后，论文探讨了LDPC码在分布式合作通信系统中的优化问题。
This paper proposes a joint source-channel decoding based on the VLC and LDPC codes.
提出了一种基于VLC和LDPC的联合信源信道译码算法。
LDPC code is a good error correct code which interests telecommunication field recently.
LDPC码作为一种性能优异的纠错码，已经越来越引起通信领域的研究兴趣。
The watermark is retrieved blindly from the marked video using the LDPC iterative method.
盲提取时用LDPC迭代译码算法对提取的水印信息进行译码。
LDPC codes have good error-correcting performances as well as good error-detecting performances.
纠错性能良好的LDPC码同时具有良好的检错性能。
Watermarks are stochastically permuted and coded by LDPC to improve the robustness against attacks.
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。
A new hardware implementation of LDPC coding arithmetic in DVB-S2 system based on FPGA is introduced.
提出了一种基于FPGA的DVB -S2系统中ldpc编码算法的硬件实现技术。
An encoder architecture of low density parity check (LDPC) code defined in DVB-S2 standard is proposed.
针对DVB - S2标准中的低密度奇偶校验(LDPC)码，提出了一种LDPC编码器设计结构。
Low encoding complexity can also be achieved due to the inherent quasi-cyclic structure of the LDPC codes.
由于产生的LDPC码本身固有的准循环结构，还能得到较低的编码复杂度。
Advanced researches on decoding algorithm and decoder structure of QC LDPC code are the focus of this thesis.
本论文主要对准循环ldpc码的译码算法和译码器结构进行了较深入的研究。
The performance of irregular systematic LDPC-coded non-ideal relay cooperative communication system is studied.
研究了基于非正规LDPC系统码的非理想中继协作通信系统。
This paper researches distributed video coding performance based on n-nary Low Density Parity Check (LDPC) code.
对基于多进制低密度奇偶校验(LDPC)码的分布式视频编码性能进行研究。
Based on the structure of quasi-cyclic LDPC codes, a synchro partially parallel decoder is proposed in this paper.
该文根据准循环ldpc码的结构特点，提出了一种同步部分并行结构的译码器。
QC-LDPC codes constructed by circulant permutation matrices will lead to inevitable cycles, named balanced-cycles.
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。
The decoder employs the Normalized MSA algorithm, and Partially Parallel structure for LDPC code in CMMB standard.
本译码器采用改进的最小和译码算法及符合CMMB标准要求的部分并行译码器结构。
Based on the statistical properties of LDPC decoding algorithm, a new timing error recovery algorithm is presented.
根据LDPC码译码算法的统计特性，提出了一种新的符号同步误差校正算法。
For the time being, there is little research of applying LDPC codes to the atmospheric wireless optical communication.
目前对无线光通信系统在大气信道中应用LDPC码的研究少见于文献。
For short and middle length LDPC codes, the oscillation of LLR owing to cycles degrades the performance of BP algorithm.
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，从而影响了译码性能。
For the detected error words by the LDPC decoder, the characteristics of code bits reliability information is investigated.
分析了低密度校验(LDPC)码译码所产生的错误码字中码位的译码输出量可靠度信息的统计特性。
After describing elements of LDPC codes, LDPC coded WCDMA downlinks were constructed, meanwhile, decoding process was improved.
在讨论了ldpc码的基本原理之后，构建了基于ldpc码的WCDMA下行链路，改进了ldpc码的译码过程。
This paper introduces a class of network coding based on LDPC code for a cooperative network and extends it to multi-hop network.
采用LDPC码的结构研究了协作分集网络中的网络编码构造，并把它拓展到多跳网络中。
Density evolution (DE) is one of the most powerful tools for analyzing the performance of low-density parity - check (LDPC) codes.
密度进化理论是分析低密度校验码的迭代译码性能的有效工具。
In order to satisfy the need in a variety of services and the high data rate, LDPC code is used for channel code in the B3G-system.
为了满足多种业务和高数据率的需求，“B3G”系统方案采用了LDPC码作为纠错编码。
The channel decoding performance is improved with channel encoding error-correcting by using Low Density Parity-check codes (LDPC) codes.
结合低密度奇偶校验码进行信道编码纠错，提高了信道译码性能。
By the computation redundancy in conventional serial decoding algorithm, a modified serial decoding algorithm for LDPC codes is proposed.
针对传统LDPC串行译码算法计算存在冗余的问题，提出了一种改进的LDPC串行译码算法。
The Q-matrix LDPC code has high flexibility concerning design of code length and rate, which makes it compatible with the existed standard.
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性，使其能与现有标准兼容。
An LDPC code structure using cyclic shift matrices and an efficient LDPC code construction algorithm using the characteristic matrices is proposed.
本文研究了一种基于循环移位矩阵结构的LDPC码，提出了一种高效的基于特征矩阵的LDPC码构造算法。
An LDPC code structure using cyclic shift matrices and an efficient LDPC code construction algorithm using the characteristic matrices is proposed.
本文研究了一种基于循环移位矩阵结构的LDPC码，提出了一种高效的基于特征矩阵的LDPC码构造算法。
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