多径信道下Rake接收机的性能分析  

Performance Analysis of Rake Receiver under a Multipath Channel

作　　者：杨康 YANG Kang(The 20th Research Institute of CETC,Xi'an 710068,China)

机构地区：[1]中国电子科技集团公司第二十研究所,陕西西安710068

出　　处：《舰船电子对抗》2024年第2期10-13,共4页Shipboard Electronic Countermeasure

摘　　要：信号在无线信道传输过程中存在多径干扰和衰落,通过对无线信道传输以及多径分集接收技术的介绍,采用多径衰落信道模型以及Rake接收技术,利用Matlab软件通过改变采样率以及多径合并路数对一般Rake接收机性能进行分析。结果表明,在一定信噪比下,采样率的提升和多径路数的增加可以提高整个系统的接收性能。There are multipath interference and fading of signals in the pocess of wireless channel transmission.This paper introduces wireless channel tramsmission and multipath diversity receiving technology,adopts multipath fading channel model and Rake receiving technology,and uses Matlab software to analyze the performance of general Rake receiver by changing the sampling rate and the number of multipath merging channels.The results show that the receiving performance of whole system can be improved by increasing the sampling rate and the number of multipath channels under a certain signal-to-noise ratio.

关 键 词：多径干扰 RAKE接收技术 信噪比 

分 类 号：TN85[电子电信—信息与通信工程]