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1.数字移动通信的目标与课题快速准确地处理多样化信息的社会需求以及通信在技术上趋向一元化的必然性,促进了数字无线通信在移动通信中的应用。因此,数字移动通信是当前急待解决的基本技术之一。采用数字传输技术具有许多优点,其主要表现如下: (1)可建立具有灵活性的系统。 (2)采用差错控制等技术,可使接收端的性能得到改善。
1. The Objectives and Issues of Digital Mobile Communications The social need to handle diverse information quickly and accurately and the inevitability that telecommunications are becoming more and more unified in technology have promoted the application of digital wireless communications in mobile communications. Therefore, digital mobile communication is one of the basic technologies urgently needed to be solved. Digital transmission technology has many advantages, its main performance is as follows: (1) can establish a flexible system. (2) The use of error control technology, the receiving end of the performance can be improved.