信道编码理论和信源编码理论。
但在水印系统中，信源编码的主要目的是水印整形。
But in watermarking system, the main aim of source coding is watermark shaping.
信源编码理论，作为信息论的研究理论基础，一直以来都受到人们的广泛关注。
The source coding theory, as the research information theory basis, have been paid much attention to by the people.
文章介绍了数字通信各领域对于语言、图文、视频及其它数据的实用信源编码技术。
This paper introduces digital communication fields for language, graphic, video and other data practical source coding technology.
如今多描述编码已被证明是克服传输错误，尤其是丢包的一种有效的信源编码方法。
Multiple description(MD) coding has been proved to be an effective method of source coding to overcome errors(packet loss specially) in channel transport.
由于传输环境的剧烈变化，移动通信系统不能工作在最佳的信源编码速率和信道编码速率。
Due to the intense change of the transmission environment, the mobile communication system can not work in the optimal source coding rate and channel coding rate.
这一思想的理论基础在于，TCQ作为一种通用的信源编码算法，可以对各种数据源做编码处理；
The principle of the method lies in: TCQ is a general source-coding algorithm to process various data.
信源编码，信道编码是DSP在通信信号处理中的传统经典应用，而如今DSP已深入射频调制部分。
Traditionally, DSP only concerns in source coding as well as channel coding, but today, it begins to set foot in radio frequency modulation field.
以哈夫曼编码为例介绍了信源编码在数字通信中文件压缩的应用，最后介绍了信源编码未来的发展趋势。
To hoffmann coding for example introduces the source coding in digital communication, finally file compression introduced the application of the source coding the future trend of development.
在这个系统中，通信载体、信源编码、虚拟键盘的设计和脑-机接口信号的单次提取是四个最核心的问题。
There are four key issues in the system, that is communication carriers, source coding, designation of virtual keyboard, and the single-trial estimation of its message carriers.
该方法根据信道条件的好坏动态的调整信源编码速率和信道编码速率，因此极大地提高了系统的性能和编码效率。
The method can dynamically adjust the rates between source coding and channel coding, thus yields good performance and high efficiency.
信源编码通过压缩编码来去掉信号源中的冗余成分，以达到压缩码率，提高通信的效率，实现信号有效传输的目的。
The source coding through compression to remove the source redundancies, achieves the compression bitrate, improve communication efficiency, achieve the purpose of effective transmission signal.
定义了复合假设检验的可达速率对，利用多用户信息论信源编码定理得到了复合假设检验可达速率区域的一个内界。
We define achievable rate vector of composite hypothesis testing and obtain one inner bound of achievable rate region.
但是，在实际中发现，用某种“特定”方法连接起来的最优信源编码器和信道编码器，并不一定能构成最佳通信系统。
But, it may be not a optimum system using an "AD hoc" method to combine the optimum source with channel coders in practical communication systems.
该技术将信源与信道编码结合在一起考虑，比将最优的信源编码方案与最优的信道编码方案相级联的传统方法更加有效。
It takes both the source coding and channel coding into account, and achieves better performance than their separate selection of optimal design.
差错控制可以在信源编码和信道编码的各个环节进行，如：预测、变换、量化、可变长编码、比特流结构、复用以及解码等。
Error control can be done in any step such as prediction, transform, quantization, VLC, bitstream syntax structure, channel coding, decoding and etc.
这种基于信源的信道编码方案充分利用了信源编码后的数据流按重要性排序的特性，并改善了其对比特差错非常敏感的不足。
This channel coding based on source utilizes the property of compressed data which generated in order of importance, and improves the limitation to error sensitivity.
该文根据信源编码压缩比、信道码率及信道特征对渐进图像传输失真的影响，提出一种基于最小图像失真的动态码率分配策略。
A dynamic rate allocation method is presented which is based on the compression rate of image source coder, channel rate, channel characters and their influence on the distortion of progressive image.
主要获得以下几方面的成果：1、提出了一种信源-信道联合编码调制的方案。
The mainly work is described as follows:1, A joint source-channel coding and modulation scheme is presented.
本文主要介绍了作者在信源信道联合编码(JSCC)方面所进行的一些研究工作。
This paper is mainly about my research on joint source-channel coding (JSCC).
高清晰度电视（HDTV）信号传输的基础是高效信源压缩编码技术的实用化。
The practice of high - efficiency source compression coding is the basis of the transmission of HDTV signal.
联合信源信道编码技术在变信道下的传输速率可接近理论极限，因此在未来多媒体通信中有很好的应用前景。
Joint source-channel coding (JSCC), which can approach the theoretical limit of transmission rates with varying channels, has a splendid application future in multimedia services.
信源信道联合编码技术是方兴未艾的一个研究领域，拓展到移动通信上，联合编码技术还有很多问题值得研究。
Joint source coding and channel coding is a developing field, many problem in this field need to be resolved, especially about mobile communication.
提出一种基于信道预测的无线fgs视频信源信道联合编码的新方法。
In this paper, we proposed a joint source channel coding method based on wireless channel prediction for FGS transmission.
对于有记忆信源来说，首先要去除像素间的相关性，从而达到压缩编码的效率。
For sources with memory, we must first remove the correlation between pixels, so as to achieve compression efficiency.
为了提高传输质量，结合JPEG2000信源和FEC信道编码的统计特性，提出了一种基于非均匀错误保护的最优码率分配技术。
Based on unequal error protection with jointing JPEG2000 source and FEC channel coding, a novel optimal rate allocation technology is proposed.
因此该方法，使编码更为有效，只需要一个编码器就能对所有形成的信源进行编码。
Therefore it can make coding more efficient and need only one vector quantizer for all formed source vectors.
本文给出了一种信源一信道联合分组编码的设计算法。
Design algorithm of joint source-channel block coding is presented in this paper.
作为一个例子，论文通过给出最小熵译码器所对应的先验一般信源，揭示了其通用编码的原理。
As an example, we explain the principle of the minimum entropy decoder by finding its corresponding apriori general source.
作为一个例子，论文通过给出最小熵译码器所对应的先验一般信源，揭示了其通用编码的原理。
As an example, we explain the principle of the minimum entropy decoder by finding its corresponding apriori general source.
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