%0 Journal Article
%T Cyclic Spectrum Analysis of OFDM Signals<br>OFDM信号循环谱结构分析
%A Huang Qi-shan
%A Peng Qi-cong
%A Lu You-rong
%A Han Meng
%A <br>黄奇珊
%A 彭启琮
%A 路友荣
%A 韩猛
%J 电子与信息学报
%D 2008
%I 
%X Based on cyclostationarity of digital modulated signals, many blind signal processing applications can be completed. But the cyclic spectrum structure of signals must be known in premise. Based on Linear Periodically Time-Variant transformation (LPTV) model and aperiodic homogeneous Markov chain model, the Spectral Correlation Density (SCD) expression of OFDM signals is derived. The magnitudes of cyclic spectrum are graphed as the heights of surfaces above a bifrequency plane. Computer simulation results confirm theoretical analysis.
%K Cyclic spectrum
%K Blind signal processing
%K OFDM<br>循环谱
%K 盲信号处理
%K 正交频分复用
%K OFDM
%K 信号建模
%K 循环谱
%K 结构分析
%K Signals
%K Spectrum
%K Analysis
%K 理论
%K 结果
%K 谱幅度
%K 频面
%K 算机仿真
%K 公式
%K 计算
%K 马尔可夫链模型
%K 非周期
%K 结合
%K 变换
%K 周期时变
%K 线性
%K 数字调制
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=1319827C0C74AAE8D654BEA21B7F54D3&jid=EFC0377B03BD8D0EF4BBB548AC5F739A&aid=3A5BDFDFF8A2F9F38B469AAFF12C803D&yid=67289AFF6305E306&vid=340AC2BF8E7AB4FD&iid=CA4FD0336C81A37A&sid=03A030BB0C519C60&eid=09E495F616948E78&journal_id=1009-5896&journal_name=电子与信息学报&referenced_num=2&reference_num=17