%0 Journal Article
%T All Digital Frequency Offset Tracking Loop in OFDM Systems<br>OFDM系统中的全数字频偏跟踪环
%A Liu De-liang
%A Wang Jin-long
%A <br>刘德良
%A 王金龙
%J 电子与信息学报
%D 2006
%I 
%X Frequency offset tracking is one of the key technologies that affect OFDM systems’ performance. Based on early-late gate phase-locked loop, a new frequency offset tracking algorithm is proposed in this paper. The study shows that the algorithm can complete frequency offset tracking in AWGN channel and multipath fading channel. Furthermore under lower SNR the performance of the proposed algorithm is better by several orders compared to the common frequency offset tracking methods. If the systems have not very special requirements on timing tracking this algorithm also can complete joint tracking of frequency and timing.
%K OFDM
%K Frequency offset tracking
%K Timing tracking
%K Phase-locked loop<br>正交频分复用
%K 频偏跟踪
%K 定时跟踪
%K 锁相环
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=1319827C0C74AAE8D654BEA21B7F54D3&jid=EFC0377B03BD8D0EF4BBB548AC5F739A&aid=591F07ADFC337307&yid=37904DC365DD7266&vid=D3E34374A0D77D7F&iid=59906B3B2830C2C5&sid=DE0AF300CE67E651&eid=87781767F0414DF5&journal_id=1009-5896&journal_name=电子与信息学报&referenced_num=0&reference_num=10