Minimum sum algorithm is very simple and is easy for hardware implementation. But the decoding performance is degraded.
最小和算法具有简单、容易实现的特点，但使译码性能较大幅度地降低。
Because of the use of these advanced coding techniques, we get a great improvement on compression and decoding performance.
采用了这些先进的编码技术后，压缩性能和解码质量都获得了很大的提高。
Simulation results show that the decoding performance and the decoding speed are ideal to be utilized in practical application.
模拟计算表明：算法的译码性能和译码速度都比较好，具有较高的实用价值。
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。
To improve the decoding performance of Low Density Parity Check (LDPC) code, an efficient decoding algorithm based on min-sum algorithm is proposed.
针对低密度奇偶校验(LDPC)译码算法性能低的问题，提出一种基于最小和的高效译码算法。
The JM models of H. 264 had been modified for a few times with the decoding performance improved more and more, but it still con not real-time decode.
在解码方面，H . 264的JM模型虽然经过了几次改动，并且每次改动都比之前的性能有所提高，但尚且不能达到实时解码的效果。
The proposed algorithm is applicable to the parallel decoding structure and can improve the decoding speed meanwhile keeping the decoding performance unchanged.
该算法适合于并行的译码结构，能够在保持译码性能不变的同时，加快译码速度。
Quantization decoding of QC-LDPC codes is studied. We simulated the decoding performance which is affected by quantitative precision and the scope of quantization.
研究了QC-LDPC码的量化译码，针对高速率的光纤通信系统，仿真验证了量化范围和量化精度的对译码性能的影响。
It improves decoding performance by adopting helical reading and helical readout to get the possibly big minimal-codeword-distance and improve the codeword distance spectrum.
该方法采用螺旋读入及螺旋读出的规则映射，获得较大的码字最小距离，改善了码字距离谱，提高了译码性能。
In the condition of soft decoding of MPEG4, we find this design can save as much as 40% CPU (resource,) which greatly improves the MPEG4 decoding performance of a SoC system.
实验证明在纯软件解码MPEG4的条件下该设计可以节省40%的CPU开销，大大提高整个系统的MPEG4解码性能。
It also maintains an instruction cache for improved performance by storing the "micro operations" of the original x86 system (which can be fetched later without the overhead of decoding).
它还通过存储原始x86系统的“微操作”来维护指令缓存(其后可在没有解码开销的情况下提取)，进而改进性能。
More importantly, I question the reason for this: making it adaptive would add just one single table lookup to the arithmetic decoding function — hardly a very large performance impact.
更重要的是，我问这个问题的原因是：只要在算术解码功能中增加一个查询表就实现自适应解码，几乎没有性能影响。
The simulation result shows the proposed scheme can reduce decoding delay and average number of iterations with negligible decoding complexity and performance degradation, especially in large SNR.
计算机仿真结果表明在不降低译码性能和不增加系统复杂度的情况下，使用该方法可以有效地减小平均迭代次数和译码延时，尤其是在大信噪比时，效果更好。
Results show that system performance is greatly improved when this trellis decoding method of block codes is adopted.
模拟结果显示，分组码采用网格译码，可为移动衰落信道带来显著的性能改善。
By the graph representation, we discuss the girth and diameter of a bipartite graph, and their roles in improving the efficiency of decoding algorithms and the performance of the code.
根据低密度码的图结构表示，研究双向图的周长、直径，及其对提高译码算法效率和码的性能所起的作用。
Suitable for decoding convolutional codes with long constraint length, this architecture saves hardware resource without performance deterioration.
这种串行结构适合长约束度的卷积码译码，能在性能不下降的前提下有效地节省资源。
At last, the performance of rs decoding in frequency domain is simulated in MATLAB and the conclusion is rs codes can effectively correct random errors and burst errors.
最后对RS码频域译码的性能进行了MATLAB仿真，结论是RS码能有效地纠正码字中的随机错误和突发错误。
The performance, the encoding and decoding method of a orthogonalizable diffuse convolution code are analyzed.
分析一种可正交扩散卷积码的性能和编译码方法。
Due to the performance degradation of subspace-based blind decoding of space-time block codes (STBC) over spatially correlated channels, a revised decoding algorithm was proposed.
针对空时分组码子空间盲解码算法在空间相关信道下性能下降的问题，提出了一种修正解码算法。
The technique combining MAP-based multi-user detection (MUD) with channel decoding can greatly improve performance and capacity of broadband CDMA mobile communication systems.
联合MAP多用户检测与信道解码的迭代多用户检测(MUD)技术可显著提高宽带移动CD MA系统的容量和性能。
Though it is simpler than the parallel decoding method in calculation, it gives the same performance as the parallel decoding method.
串行译码方法不仅计算简单，而且所达到的性能与并行译码方法相近。
Compared with existed schemes, this scheme decreases the mean iteration times of decoding and reduces computation complexity with slight performance degradation.
与已有的方案相比，本方案的性能几乎没有损失，但是减少了译码的平均迭代次数，降低了计算复杂度。
The proposed adaptive inverse model for turbo decoding has agreement with turbo decoding mechanism and provides a new way to improve the performance of turbo decoding.
自适应逆译码模型从译码机理角度提供了一种改善译码性能的新途径。
Due to the particular relation of generator matrix and parity check matrix, it can achieve unequal error protection performance with the modified decoding algorithm.
由于校验阵和生成阵满足一定的关系，因此可以采用修正的译码算法来实现对码字的不等错误保护。
Abstract : The structured low density parity check (LDPC) codes can be described by the base-matrices and lifting factors, which have low encoding/decoding complexity and good coding performance.
摘要结构化低密度奇偶校验码可通过基矩阵和扩展因子描述，具有较低的编译码复杂度和优异的译码性能。
In order to further enhance the performance of the coded system, effective joint iterative decoding technique and novel pre-decoding technique are proposed.
为了进一步提高编码系统性能，提出了有效的联合迭代译码技术和新颖的预译码技术。
However, along with its performance improved, it has brought a tremendous amount of computing, so it is difficult to use its source code directly to achieve the real-time encoding and decoding.
然而其性能提高的同时却带来了巨大的运算量，使得很难直接运用其源代码来达到实时编解码。
Comparing with the traditional algorithms, antenna correlated parameters are introduced in channel estimation and the process of decoding, and transmission performance is improved.
新算法较传统方案，在信道估计和空时译码过程中引入收发天线相关参数，消除了天线互扰对接收性能的影响，提高了传输性能。
The corresponding simulation and analysis shows that the new criterion does help reduce the average number of decoding iteration and the time delay while the BER performance is almost not degraded.
经仿真验证，该准则在译码性能几乎没有下降的同时，有效的减少了平均迭代次数，降低了时延。
Currently studies on the performance of STBC have been relatively comprehensive, so research focus is shifting to optimize code structure and reduce the decoding complexity.
目前对空时分组码的性能研究已经比较全面，研究重点开始转移到优化编码结构和降低译码复杂度等方面。
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