1) QC-LDPC codes
准循环低密度奇偶校验码
1.
In this paper,we present an improved structure of QC-LDPC codes.
低密度奇偶校验码(LDPC codes)码是一种性能接近香浓限得线性分组码,而准循环低密度奇偶校验码(QC-LDPC codes)是LDPC码的一个重要子类。
2.
Different rates and frames QC-LDPC codes in systematic-circulant(SC) form were designed by constructing the parity check matrix,and their performance was analyzed.
准循环低密度奇偶校验码(QC-LDPC codes)相比其他的LDPC码具有简单的编码结构,拥有较好的应用前景。
3.
QC-LDPC codes has a good application foreground in digital communications domain.
准循环低密度奇偶校验码(Quasi-cyclic Low Density Parity Checkcodes,简称QC-LDPC码)是一种能够很好的逼近香农限的线性分组码。
2) QC-LDPC
准循环低密度校验码
1.
Based on the suitable channel model,an implementation of quasi-cyclic low density parity check codes(QC-LDPC)for acoustic communication system in shallow water is demonstrated.
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。
2.
Quasi-cyclic low-density parity-check codes(QC-LDPC) have been adopted as the inner code of channel codes in Chinese digital terrestrial television broadcasting standard(CDTTB).
中国数字地面电视广播标准采用准循环低密度校验码(QC-LDPC)作为其信道编码的内码。
4) Low Density Parity Check(LDPC) Codes
低密度奇偶校验码(LDPC码)
5) LDPC
低密度奇偶校验码
1.
The LDPC advanced by Gallager has standard Tanner figure structure,and the advantage of the performance can be materialized after the length of the codes become longer.
低密度奇偶校验码(LDPC)作为先进的信道编码方式,已成为第四代通信系统(4G)强有力的竞争者。
2.
In this paper, it is introduced that the hardware implementation and resource utilization of LDPC encoder based on Shift Register Adder Accumul(SRAA) structure in Digital Terrestrial Multimedia Broadcasting(DTMB) transmitter.
介绍了中国数字电视地面传输标准中基于累加移位寄存器(SRAA)结构的低密度奇偶校验码(LDPC)编码的硬件实现方法和资源占用情况。
3.
This paper introduces a design method of LDPC encoder based on 802.
16e协议的实时LDPC(Low Density Parity Check,低密度奇偶校验码)编码器的设计方法。
6) LDPC codes
低密度奇偶校验码
1.
On construction of LDPC codes based on data puncturing hybrid ARQ;
基于数据打孔混合ARQ方案的低密度奇偶校验码构造方法
2.
The construction methods of LDPC codes with its Belief Propagation(BP) decoding algorithm are briefly introduced.
介绍低密度奇偶校验码(LDPC码)的构造方法和置信传播译码算法,引入基于校验节点的一种快速收敛译码算法——串行译码算法。
3.
In this paper, the basic construction method of LDPC codes is proposed, including an algebraic construction method for regular LDPC with long grith.
文中介绍了低密度奇偶校验码的基本构造方法,并提出来一种具有较大围长的规则LDPC码的代数构造方法,通过计算机仿真性能,获得了较理想的结果。
补充资料:奇偶校验(奇jī)
一种校验代码传输正确性的方法。根据被传输的一组二进制代码的数位中“1”的个数是奇数或偶数来进行校验。采用奇数的称为奇校验,反之,称为偶校验。采用何种校验是事先规定好的。通常专门设置一个奇偶校验位,用它使这组代码中“1”的个数为奇数或偶数。若用奇校验,则当接收端收到这组代码时,校验“1”的个数是否为奇数,从而确定传输代码的正确性。
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参考词条