摘要
Zhao和H¨aggmen给出了OFDM系统中存在载波间干扰(ICI)时计算载干比(CIR)的公式,但未给出该公式的出处.根据DFT滤波器组的频域响应,分析了OFDM系统ICI产生的原因,在此基础上建立了ICI的频域上的数学模型,得到CIR公式.
Zhao and Hggman proposed a formula for calculating CIR for OFDM systems with ICI presented, However, there was no process to deduce that formula in the paper's references. Based on the analysis of frequency response of DFT filter bank, the cause of ICI in OFDM systems in analyzed. A mathematic model is setup in frequency domain, and the CIR formula is obtained.
出处
《山东大学学报（工学版）》
CAS
2003年第3期296-298,324,共4页
Journal of Shandong University（Engineering Science）
关键词
频偏
多载波
载波间干扰
正交频分复用
离散Fourier变换
滤波器组
frequency offset
multicarriers
intercarrier interference
orthogonal frequency division multiplexing
discrete Fourier transform
filter bank
