计算机工程2012，Vol.38Issue(22)：15-18,23,5.
OFDM系统模拟前端非理想因素的估计补偿
Estimation and Compensation for Analog Front-end Non-ideal Factors in OFDM System
摘要
Abstract
To solve the problem of deterioration of system performance for the three analog front-end non-ideal factors, such as Carrier Frequency Offset(CFO), IQ imbalance and Sampling Frequency Offset(SFO), in Orthogonal Frequency Division Multiplexing(OFDM) system, this paper proposes a novel joint estimation and compensation algorithm, which estimates and compensates CFO and IQ imbalance in time domain, while Residual Carrier Frequency Offset(RCFO) and SFO in frequency domain. Result shows that, compared with some of the traditional algorithms, the algorithm uses fewer data supporting resources and improves the estimation accuracy, even with large values of non-ideal factors, the proposed algorithm is still able to provide a low bit error rate.关键词
正交频分复用/载波频偏/IQ失配/采样频偏/估计/补偿Key words
Orthogonal Frequency Division Multiplexing(OFDM), Carrier Frequency Offset(CFO)/ IQ imbalance/ Sampling Frequency Offset(SFO)/ estimation/ compensation分类
信息技术与安全科学引用本文复制引用
陈昊,聂彧,李凯,叶凡,任俊彦..OFDM系统模拟前端非理想因素的估计补偿[J].计算机工程,2012,38(22):15-18,23,5.基金项目
国家科技重大专项基金资助项目(2011ZX03004-001-02) （2011ZX03004-001-02）
