decoding scheme中文什么意思

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1. 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。
2. 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。
3. 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。
4. 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。
5. 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。