An improved sova - based decoding scheme for turbo - stcm 的并行级联空时格码的译码算法
That specifies the decoding scheme 指定解码方法的
Novel coding and decoding scheme for modified optical duobinary signal transmission 新型改进光双二进制传输的编解码方案
In this paper , we consider the concatenation of bose - chaudury - hocquenheim ( bch ) and repetition codes and present soft - decision decoding schemes based on a map ( maximum a posterior probability ) criterion 在本文中,我们考虑了bch码和重复码的级联编码,并且基于最大后验概率准则,提出了一种软判决解码方法。
There are two decoding schemes for convolution code , such as sequence decoding algorithm and viterbi algorithm . because of simplicity 、 excellent performance , viterbi decoding algorithm is abroad applied 卷积码的译码算法有序列译码和viterbi译码两大类, viterbi译码算法由于其简单、性能优异等特性得以广泛应用。
3 . by theoretical analysis and simulation , quantization decoding of ldpc codes is studied . an efficient quantization - decoding scheme is proposed which can greatly reduce the decoding complexity with a little performance loss 采用理论分析和仿真相结合的方法研究了ldpc码的量化译码,提出了一种高效的量化译码实现方案,该方案能够大大降低译码复杂度,同时译码性能非常接近连续译码。
In this dissertation , some fast fractal image encoding and controllable progressive decoding scheme are proposed , as follows : ( 1 ) because of existed fast encoding methods are often at the cost of reconstructed image quality , or can only obtain poor speed - up ratio 为此,本文在快速分形编码方面和渐进解码方面作了以下研究工作: ( 1 )针对目前许多分形编码加速方法或者以牺牲解码图像质量为代价,或者加速效果不明显的情况。
The pulsar system is developed with the following parts : the robust feature extraction based on auditory mechanisms , acoustic modeling with mandarin pronunciation characteristics , search space building based on wfst , and efficient global decoding scheme 本研究实现的系统pulsar包括:基于听感知机理的抗噪声特征提取,针对汉语发音特点的声学建模,基于加权有限状态自动机( wfst )的搜索空间,融合声学模型和语言模型的高效全局解码。
A serially concatenated iterative scheme ( bpcm - id ) combining low - density parity - check codes ( ldpc ) with multilevel modulation is proposed . differ from other serially concatenated iterative decoding schemes , the whole iterative process of bpcm - id is divided into outer iteration and inner iteration to avoid too much errors feedback to the demapper which may cause severe degradation of decoding performance 论文提出了一种新的多级ldpc码的概念、基本特性、构造准则和搜索算法,给出一种融合mlc / bicm的联合编码调制系统框架,与传统mlc系统区别在于用一个多级ldpc码取代多个分量码。
There are many decoding schemes for convolutional code , such as sequence decoding algorithm , fano algorithm , viterbi algorithm . but in fact , what ' s used widely is viterbi decoding algorithm . the viterbi decoding algorithm , proposed in 1967 by viterbi , is a decoding process for convolutional codes in memory - less channel , which takes full advantage of convolutional codes . since viterbi algorithm is proposed , it has obtained rapid development whether in theoretics or in practice and been applied to all kinds of data transmission systems , especially to digital wireless communications and deep space communications 卷积码的译码算法方案有很多,如序列译码算法、 fano算法、 viterbi算法,但是真正大规模应用的还是viterbi算法。 viterbi译码算法是1967年viterbi提出的,它是一种对无记忆信道卷积码进行译码的算法。它充分发挥了卷积码的特点,因而自viterbi算法提出以来,无论在理论上还是在实践上都得到了极其迅速的发展,并广泛的应用于各种数据传输系统,特别是无线通信和卫星通信系统中。