介绍了一种乘积码迭代译码器的硬件设计方案。
This paper introduces a hardware design of two dimensional product code iterative decoder.
论述一种基于软判决反馈迭代译码的比特交织编码调制方案。
A bit interleaved coded modulation (BICM) scheme was introduced, with iterative decoding using soft decision feedback.
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。
Density evolution (DE) is one of the most powerful tools for analyzing the performance of low-density parity - check (LDPC) codes.
盲提取时用LDPC迭代译码算法对提取的水印信息进行译码。
The watermark is retrieved blindly from the marked video using the LDPC iterative method.
依据迭代译码的基本思想，研究了联合迭代解调译码原理与方法。
Based on the main idea of iterative decoding. The principle of joint demodulation and the method of decoding are studied.
迭代译码思想和基于概率的软译码方法改变了信道编码技术的研究思想。
Iterative decoding thoughts and soft decoding methods based on probability changed the study perspective of channel codes.
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。
In order to further enhance the performance of the coded system, effective joint iterative decoding technique and novel pre-decoding technique are proposed.
提出了卷积码与GMSK(高斯最小移频键控)调制器级联系统的一种迭代译码方案。
An iterative decoding scheme is proposed for the concatenation of a convolutional code and a GMSK modulator.
由于采用迭代译码算法，而且是并行算法，因此能提高译码速度，降低译码的复杂度。
As a result of using the iterative decoding algorithm, which is a parallel algorithm, it can improve the decoding speed and reduce the complexity of decoding.
多接收天线可以对判决似然比和迭代译码的外部信息提供分集增益，从而进一步提高系统性能。
Multi-receive antennas can also provide the diversity gain for LLR information and iterative extrinsic information.
接着介绍了R S码的编码原理和时域迭代译码算法，在此基础上设计实现RS码编码器和译码器。
Then, the code theory and time-domain iterative decode algorithm of RS code is introduced, RS coder and decoder are designed and implemented in this base.
在联合信源信道迭代译码器中，信源变长译码采用基于麻花辫网格的低复杂度变长译码算法进行译码。
In a joint source-channel iterative decoder, the source variable length decoding adopts the lower complexity variable length decoding algorithm based on the twist braid grid to decode.
该方案考虑到非规则LDPC码的译码特点，通过度数最低的变量节点的似然信息来判定迭代译码是否继续。
This scheme considers the decoding property of irregular LDPC codes and decides whether iterative decoding continues based on the log-likelihood ratio value of lowest degree variable nodes.
这些参数主要包括分量码、交织长度和交织器类型、迭代译码算法和译码迭代次数、编码速率以及信道条件等。
The parameters include generator polynomial of component codes, interleave length and the type of interleavers, iterative decoding algorithms and iteration number, code rates and channel models et al.
并行级联分组码也已经显示出接近香农理论极限的卓越性能，而其译码采用的也是一种相对简单的迭代译码技术。
The parallel concatenated block code has been shown to yield remarkable performance close to theoretical limits, yet admitting a relatively simple iterative decoding technique.
在DS - CD ma系统中，联合译码的迭代多用户检测是克服多址干扰增加系统容量的有效方法。
It has been proved that iterative multiuser detection with decoding is a very effective way to increase system capacity in DS-CDMA systems.
为防止过多错误反馈造成译码失效，提出采用内、外双重迭代方式提高系统的鲁棒性。
Both outer and inner iterations are used to avoid too much error feedback which may cause decoding failures.
为防止过多错误反馈造成译码失效，提出采用内、外双重迭代方式提高系统的鲁棒性。
Both outer and inner iterations are used to avoid too much errors feedback which may cause decoding failure.
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。
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.
同时，在无法得到精确干扰状态信息的情况下，提出了一种迭代干扰状态估计及译码算法。
If exact JSI was not available, however, an iteratively joint jammer state estimation and decoding algorithm was proposed.
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。
Compared with existed schemes, this scheme decreases the mean iteration times of decoding and reduces computation complexity with slight performance degradation.
通过仿真表明，这种低复杂度的TTCM迭代均衡译码系统的性能可接近于高斯信道下ttcm系统的性能。
Computer simulation results show that the novel low-complexity receiver on the fading channel can achieve comparable performance with TTCM on the Gaussian channel with coding.
通过使用优化的迭代算法，可以使得整个二元BCH码的译码速度得到明显的提高。
So the iterative times are reduced greatly. By optimized iterative algorithm, the speed of decoding BCH codes gets increased obviously.
采用了一种可以避免求逆运算的修正BM迭代算法，并且利用这样的迭代算法和基于弱对偶基的比特并行乘法器构成了广泛应用的RS码的译码器。
By selecting the bit parallel multiplier based on WDB and the modified BM iterative algorithm that can avoid inversion, the widely used rs decoder is constructed.
针对传统停止迭代准则译码耗费硬件资源的不足，提出了利用外部信息结合交叉熵迭代停止准则作为新的迭代停止准则算法。
Owing to the disadvantage that traditional stopping criteria expend hardware resource too much, USES the combination of cross entropy criteria and exterior information by way of the stopping criteria.
LDPC码译码误比特率与迭代次数关系曲线及其粘滞点的研究，对于进一步深入分析译码机理和加快译码收敛的速度有着重要的意义。
Research of the fixed point which appears in decoding process of LDPC codes is important to further analyze the decoding mechanism and speed up decoding convergence.
推导了不同测度下LDPC码各种译码算法的消息迭代更新公式。
The equations for updating messages of different decoding algorithms of LDPC codes are induced.
采用迭代的检测与译码算法进行多址干扰的消除。
Iterative detection and decoding algorithm was applied to combat multiple access interference.
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。
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.
目的节点采用迭代最大后验概率译码，利用多个时刻收到的码字恢复源 节点发送信息。
Using iterative and maximum a posteriori decoding method, the information can be obtained at the destination node by decoding the codes received in different time.
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