摘要
提出了一种基于循环前缀的OFDM盲检测及参数估计算法。该算法利用接收信号循环前缀的相关性进行OFDM信号的盲检测,并通过搜索联合相关函数的峰值来实现参数估计。该算法能区分OFDM与其它多种体制的信号,应用范围广范。实验结果表明该算法所需数据量小,检测及参数估计精度高,具有一定的可行性和实用性。
In this paper,an algorithm is proposed for blind detection and parameter estimation of OFDM signals based on Cyclic Prefix.This algorithm can utilize the correlation of cyclic prefix of received signals to obtain the blind detection of OFDM signal,and the parameter estimation for OFDM is obtained by finding the peak value of the combined correlation function.The algorithm can distinguish OFDM signals from the others,and it can be widely used.Experiment results show that the proposed algorithm has a high detection and estimation accuracy with little data,so it is applicable to actual signals.
出处
《信息工程大学学报》
2010年第2期196-200,227,共6页
Journal of Information Engineering University
基金
科研基金资助项目
关键词
OFDM信号
循环前缀
盲检测
参数估计
OFDM signals
cyclic prefix
blind detection
parameter estimation
