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智能天线,RAKE以及联合检测是第三代移动通信系统采用的抗干扰关键技术,这些技术用于减少CDMA码分多址系统的各种干扰,提高系统容量。本文对这几种技术进行了介绍,在此基础上,分别就智能天线结合RAKE(2D-RAKE),智能天线结合联合检测(SA+JD)的性能在特定的系统下进行仿真。最后,本文还简要介绍了移动通信系统的一些抗干扰的新技术和新思路。
Smart antennas, RAKE and joint detection are the key anti-interference technologies adopted by the third generation mobile communication systems. These technologies are used to reduce various interferences of CDMA code division multiple access systems and improve system capacity. In this paper, we introduced these technologies, and on this basis, we simulate the performance of smart antenna combined with RAKE (2D-RAKE) and smart antenna combined with joint detection (SA + JD) under specific system. Finally, this article also briefly introduces some new anti-jamming technologies and new ideas of mobile communication system.