论文部分内容阅读
这是一本论述电信网设计中一般工程考虑的新书。内容相当广泛,不但讲述现在大量采用的、传统的模拟电信网,而且包括了正处于迅速发展阶段的数字电信网。对于电信工程中的两大分支:传输和交换,本书均有叙述,但侧重于传输。尽管书中主要内容涉及电话通信,然而关于数据和传真等其它信息在电话网中的传输问题也占有一定篇幅。书中收集了大量可供电信网设计用的参考数据,CCITT和欧、美、日等国的标准,并列举很多实例。 全书共十一章,总计480页、图表238幅、引用文献241篇。除第11章外,全书大体上可分成前、后两部分。 前七章主要内容是摸拟电话的传输和交换。第1章介绍传统电话的基本概念、话务量计算以及简单的
This is a new book on general engineering considerations in telecom network design. The content is quite extensive, not only about the massively used, traditional analog telecommunication network, but also the digital telecommunication network which is in its rapid development stage. For the two branches of telecommunications engineering: transmission and exchange, this book has a narrative, but focuses on the transmission. Although the main content of the book deals with telephone communications, there is also space for transmission of other information, such as data and fax, over the telephone network. The book collected a large number of reference data for the design of telecommunications networks, CCITT and Europe, the United States, Japan and other countries, and cite many examples. The book consists of eleven chapters, a total of 480 pages, 238 charts, cited 241 articles. In addition to the eleventh chapter, the book can be divided into the former and the latter two parts. The main content of the first seven chapters is the simulation of telephone transmission and exchange. Chapter 1 introduces the basic concepts of traditional telephony, traffic calculation, and simple