宽带CDMAWLL系统的数字接收机的实现

Implemetation of Digital Receiver for Wideband CDMA WLL System

无线本地环(WLL)是一种无线接入系统,它用无线的方式代替了传统的铜线连接用户到本地交换机。介绍了一种用于宽带CDMAWLL系统的数字接收机。叙述了WLL的系统组成、网络结构、反向链路信道结构和反向中继接收机设计规范,并论述了代码捕获和代码跟踪模块的功能。接收机的运行时钟频率可达65.536MHz。

WLL is a wireless access system that uses a wireless link to connect subscribers to their local exchange in place of conventio nal copper cable.This paper describ es a digital receiver for the pro-posed wideband CDMA WLL system.The s ystem constitute and network structure of WLL are described ,then reverse link channel structure and design specification of the reverse link receiver are described,and the functions of code acquisition an d code tracking module are discussed.The reverse link receiver can oper-ate at clock frequency up to 65.536MHz.