信源编码

基于turbo码的对称式分布式信源编码研究

Symmetric distributed source coding based on turbo codes

分布式算术编码（DistributedArithmeticCoding，DAC）是基于分布式信源编码的基本理论，使用算术编码作为编解码的核心过程一种编码方法。

Distributed arithmetic coding which based on the distributed source coding theory uses arithmetic coding as its core process .

C语言实现模拟信源编码最优量化的数值计算

Numerical Calculation for Optimal Quantization of the Analog Source Encoding by C Language

面向IP网络，讨论了一种信源编码的失真估计模型，并用典型的视频编码器作了验证。

A model of source distortion for video transmission over IP network is discussed and verified by two typical video encoders .

全数字化HDTV传输系统图像信源编码的研究

A Research on Video Source Coding Scheme for All-Digital HDTV Transmission System

DRM系统的关键技术&信源编码方法

Key technology in DRM system & the method of source coding

HDTV信源编码中的自适应处理

Adaptive processing in digital HDTV source coding

基于IFS分形理论的信源编码技术的研究

A Study of IFS Fractal Based Source Coding Techniques

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 .

本文研究了OFDM系统的构成模型和关键技术，讨论了信源编码、信道编码、信道估计和同步等部分的作用和方法。

The research in this paper about OFDM refers to the construction model and key technology such as source coding , channel coding , etc.

分布式信源编码（DistributedSourceCoding，DSC）是一种信息压缩编码的技术，可以用来对有相互关系但却不相互通信的相关信源进行压缩。

Distributed Source Coding ( DSC ) is an information compression coding technique . It can be used to compress the interrelated sources that are related but can not communicate to each other .

分布式视频编码（DistributedVideoCoding，简称DVC）是分布式信源编码在视频中的应用，通过在解码端消除视频帧间冗余来进行压缩，可以获得较低复杂度的编码器。

Distributed Video Coding ( DVC ) is an application of DSC in video coding . It enables low-complexity encoding by shifting the bulk of the computation to the decoder .

为了克服这些限制，需要设计能耗较低的通信协议和算法，其中，在编码时采用分布式信源编码（DistributedSourceCoding，DSC）技术就是一种有效地解决方法。

To overcome such constraints , a low power-consuming communication protocol or algorithm is needed . Using Distributed Source Coding , DSC during information encoding is one of the effective ways to solve the problem .

分布式信源编码（DSC）能有效降低编码器复杂度，特别适合传感器网络等编码端资源受限的场合。

Due to much lower complexity of distributed source coding ( DSC ), DSC technology is especially suitable to situations with resource-limited encoders , such as sensor networks .

AVS标准是我国具有自主知识产权的第二代信源编码标准，近年得到国家的大力推广。

AVS is the second generation source coding standard with independent intellectual property rights of China , and it is popularized by our country now .

分析了多媒体无线传输模型，并讨论其中的信源编码失真度DS、信道传输失真度DC、系统总体失真度D及其相互的关系。

The model for the wireless multimedia transmission was analyzed ; the relationship among source coding distortion Ds , the channel distortion Dc , and the rate distortion of the transmission system D were discussed ;

本论文主要就WSN中的信息处理进行研究，涉及三个方面的内容，即容量分析、信息驱动的节点选择机制和分布式信源编码。

This thesis concentrates on the information processing in wireless sensor networks and especially focuses on three aspects , i.e. capacity analysis , information-driven sensor selection algorithm and distributed source coding .

Walsh-Hadamard变换及其在信源编码中的应用

Walsh-Hadamard Transformation and Its Application in Source Coding

基于传统视频信源编码在应用层QoS的联合信源信道优化，研究了信源编码和信道编码之间合理分配带宽以及信道与信源联合编码下的有效码率控制问题。

The joint source-channel optimization based on the classical source coding with application-layer QoS , focuses on two challenges : to optimally allocate bit-rate between source and channel coding and to effectively achieve joint source-channel coding gain .

DRM的发射系统是由信源编码、复用、信道编码和QAM调制、OFDM单元映射和OFDM符号生成、射频调制几个部分组成的。

DRM transmission system is comprised of source encoders , multiplexer , channel encoder and QAM modulation , OFDM cell mapping and OFDM signal generator , RF modulation and so on .

论文还通过大气信道模型，提出了把CDMA引入无线光通信，并提出了适合无线光CDMA的信源编码和信道编码，开辟无线光应用的新领域。

And by the presented model , we can combine the CDMA Technology and the wireless optical communications , and we can present a new encoding scheme of the information sources and atmospheric information channel .

基于实用符号动力学的基础理论，提出了一种实用的混沌保密编码方法，该方法借助于单峰的logistic映射处于混沌吸引子状态时产生的符号序列作为密钥，对信源编码信号进行加密。

Based on the foundation theory of applied symbolic dynamics , we get a practical method of chaos secret coding , i.e. use the strange attractor of logistic map to produce the symbol secret key to modulate the source code .

AVS是我国自主研发的第二代信源编码标准，具有编码效率高、运算复杂度低、专利费用低等优点，应用前景非常广阔。

AVS is the second source coding standard with independent intellectual property in China . It has very broad prospects with high coding efficiency , low computational complexity and low patent costs .

针对静态测量中GPS数据的特性，采用去除信息冗余度、局部字典编码和差分霍夫曼编码相结合的策略，对测点采集的GPS数据进行信源编码。

According to the characteristics of GPS data in static measurement , information source coding was carried out for the received GPS data collected from the observation spot with the help of the combination of eliminating redundancy of data , dictionary coding and differential Huffman coding method .

针对误码信道和信源编码的统计特性，提出了一种能有效提高基于DCT变换的视频编码码流的抗误码性能的自适应不等错误保护方法。

According to the error channel and the statistical characteristic of the source code , a new adaptive unequal error protection scheme for improving the error resilience of the bitstream based on DCT transform is proposed in the paper .

本方法原理上推广了Viterbi译码算法，形成一个需要兼顾信道编码序列流的最优路径与多路信源编码状态转移树中的最大先验概率的译码算法。

Our method generalize the conventional Viterbi decoding algorithm , not only the optimal path in channel decoding trellis but also the a priori probability of branches in multiple VLC source trees are considered .

AVS是我国具备自主知识产权的第二代信源编码标准，其重点解决的问题是数字音视频海量数据的编码压缩问题。

AVS which our nation owns the Intellectual Property is the second generation coding standard of information . It comes out to solve the coding compression problem of the massive data of video and sound .

分布式信源编码的思想同时应用到视频领域，并形成新的研究热点：分布式视频编码（DVC）。

In addition , the Distributed source coding idea is applied into the video field , which becomes a new research hotspot : Distributed Video Coding ( DVC ) .

该标准的提出既改变了第一代信源编码技术落后的局面，也解决了AVC专利许可问题死结。

The proposal of this standard not only changes the lagging situation of the first generation source coding technology , also it avoids the heavy burden of patent fees of MPEG-4 and H.264/AVC .

第二章详细介绍了DVB-T发送端的基本模型，包括对MPEG-2信源编码简要介绍以及信道编码方式的具体描述。

An overview of DVB-T and OFDM is given in chapter 1 . Chapter 2 concentrates on the DVB-T transmitter , including a short introduction to MPEG-2 source coding and a detailed description of the channel coding .