WCDMA系统中的频偏估计算法研究  

Analysis of Frequency Offset Estimation Algorithm for WCDMA System

作　　者：周鹏[1] 李校林[1] 

机构地区：[1]重庆邮电大学通信新技术应用研究所,重庆400065

出　　处：《电视技术》2010年第S1期150-152,共3页Video Engineering

摘　　要：在基于WCDMA系统频偏估计原理的基础上,提出了4种频偏估计算法,给出了算法的详细分析过程,并对这4种算法进行了仿真。通过仿真发现,这些算法性能各异,满足不同场景下的应用。最后分析了WCDMA手机终端中所采用的两种频偏估计算法,这两种算法可以将频偏控制在±0.05×10-6之内,满足WCDMA系统对频偏控制的要求,较好地实现了精确的频偏估计,解决了WCDMA手机终端中频偏估计精度提高难度大的问题。Based on the principle of frequency offset estimation for WCDMA systems,four frequency offset estimation algorithms are proposed and detailed analytical results are given.These algorithms are also emulated.The simulation results show that the performance of different algorithms can meet the needs of the application under different scenarios.Finally,two frequency offset estimation algorithm are analyzed that the frequency offset can be controlled within ±0.05×10-6 by using this algorithm and can meet the requirements of the offset control for WCDMA system.Accurate estimation in the signal acquisition system is well achieved and the problem that it is difficult to improve the accuracy of frequency offset estimation for WCDMA mobile phone terminal is solved.

关 键 词：宽带码分多址系统 频偏估计 性能分析 相关计算 

分 类 号：TN929.533[电子电信—通信与信息系统]