摘要
码分多址(CDMA)技术以其优越的性能已发展成为第三代移动通信的核心技术.本文基于IS-95规范标准,介绍了CDMA系统的通信原理,剖析了CDMA系统的前向链路信道和后向链路信道结构;基于MATLAB/Simulink工具箱对各功能模块进行建模与仿真;以前向业务信道为例设计出一套完整的CDMA动态仿真系统,详细分析CDMA通信系统的工作方式及信号处理过程,并对不同的信道环境下误码率特性及抗干扰能力进行了仿真分析.
Code Division Multiple Access （CDMA） becomes the core technology of the third generation mobile communication by its various advantages. In this paper, CDMA communication theory based on standard IS-95 are introduced firstly. The structure of the forward and backward channel is analyzed. Then the Simulink of MATLAB is used to build models of the function modules and carry out simulation analysis in visual form. Finally, a set of CDMA dynamic simulation system of forward business channel is designed, the operating mode and processing procedure of CDMA systems are given in detail. At the same time, the error rate characteristics and anti-jamming capability under different channel environments are analyzed.
出处
《华中师范大学学报（自然科学版）》
CAS
CSCD
2007年第4期528-532,共5页
Journal of Central China Normal University：Natural Sciences
基金
国家自然基金资助项目(60274020)
华中科技大学优秀博士基金资助项目.
