信源

The channel coding theorem, the source coding theorem.

信道编码理论和信源编码理论。

Its main task is to make students understand clearly and wholly the basic theory, analysis result and the latest development of information theorem and coding by teaching and exercises, which can build a substantial theory basis for studying the subsequent courses on the transmission, storage and processing of information, image and speech source compression and coding, and error-correcting coding for computer communication and wireless mobile communication, as well as the research and development of modern code theory.

它的主要任务是通过教学和习题，使学生对信息与编码的基本理论，主要分析结果以及最新的发展有一个清晰和完整的认识和理解。为学习和研究信息的传输，存储和处理相关类的后续课程，以及图像与语音信源压缩编码、计算机网络通信与无线移动通信纠错编码、以及各种现代密码理论与技术的研究和开发，打下坚实的理论基础。

Source coding theorem.

信源编码定理。

Topics include: mathematical definition and properties of information; source coding theorem, lossless compression of data, optimal lossless coding; noisy communication channels, channel coding theorem, the source-channel separation theorem, multiple access channels, broadcast channels, Gaussian noise, and time-varying channels.

课程主题包括：针对「资讯」的明确数学定义及性质描述；信源编码理论、无失真资料压缩技术、最佳化无错误编码；杂讯干扰的通讯频道解析、频道编码理论、资讯来源-通道编码分离理论、多重存取频道解析，广播型态频道解析、高斯杂讯及多变量时间频道解析。

In this paper we discuss how to select appropriate source and channel rate for transporting variable bit-rate compressed video over QoS-assured channels.

摘要本文讨论了可变比特率视频流在有服务质量保证的信道上传输时的信源和信道速率控制问题。

In this thesis, I summarize and implement the up-to-date language models, such as N-Gram Language Model, Interpolation N-gram Language Model, Context-Free Grammar and Probabilistic Context-Free Grammar, and establish the run-length language model Character-level and word-level run-length language model are established on the base of the concept of limit entropy and discrete stable information source and by using maximum likelihood between character strings.

在充分研究和比较了中文和西文特点的基础上，提出了变长汉语语言模型。应用极限熵、离散平稳信源和字符串之间的最大似然度等概念和方法，建立了字一级的变长语言模型和词一级的变长语言模型。实验的结果显示这种语言模型不仅比Bigram具有更低的复杂度，而且包含了更长距离内的信息，运行时间也大大小于N-Gram。

Public key cryptography , combined with the traditional symmetric cryptograph and the message digest technology , can provide confidentiality , integrity and proof of origin .

公钥密码技术结合传统的对称密码技术及信息摘要技术，可提供信息的保密性、完整性和信源确认，是多种安全应用的基础。

A method of the source number estimation is proposed based on the fourth order cumulant information.

提出了一种基于阵列输出4阶累积量信息的信源数目估计方法。

In this dissertation the TS demultiplex task and AC-3 decoding task in MPEG-2 protocol are scheduled by 2 policies. One is the buffer-drive policy and the other is deadline-drive policy.

本文根据HDTV信源集成解码芯片的工作原理，对MPEG-2协议中的TS流解复用任务和AC-3音频解码任务提出缓存驱动和时限驱动两种调度策略。

With HDTV 's appearance, Condition Access technology will be used to. So discerption of TV and card will give CI technology a good chance that it is builded into TV. The controller system of discerption of TV and card was provided by SCM, SONY and ATMEL. But their compatibility is very low.

80年代中期，正当日本集中力量研究HDTV，1991年之后欧洲开始全数字HDTV制式的研究，信源编码欧洲和美国一样采用MPEG-2标准，HD-DIVINE提出COFDM技术引起国际上的注意，对于抗干扰有着明显的优势，正是在这个基础上开发成功DVB标准。

The labia have now been sutured together almost completely.The drains and the Foley catheter come out at the top.

此刻阴唇已经几乎完全的缝在一起了，排除多余淤血体液的管子和Foley导管从顶端冒出来。

To get the business done, I suggest we split the difference in price.

为了做成这笔生意，我建议我们在价格上大家各让一半。