%0 Journal Article
%T SUBSPACE-BASED TIME DELAY ESTIMATION FOR ASYNCHRONOUS BANDLIMITED DS-CDMA SYSTEMS<br>异步带限DS-CDMA系统中基于子空间的时延估计算法
%A Huo Jianguo
%A Cheng Yunpeng
%A Cai Yueming
%A <br>霍建国
%A 程云鹏
%A 蔡跃明
%J 电子与信息学报
%D 2001
%I 
%X An algorithm for time delay estimation in asynchronous band-limited DS-CDMA systems is presented. The algorithm is based on subspace concept. The noise subspace is estimated first, and then coarse estimation and fine search of time delay are implemented sequentially. The performance of the algorithm is analyzed, and simulations are carried out. The results show that the algorithm is near-far resistant and robust to the number of users partly, the estimation accuracy is improved greatly, and the required computation is reduced.
%K CDMA
%K Time delay estimation
%K Synchronization
%K Subspace<br>DS－CDMA
%K 时延估计
%K 子空间
%K 码分多址
%K 通信系统
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=1319827C0C74AAE8D654BEA21B7F54D3&jid=EFC0377B03BD8D0EF4BBB548AC5F739A&aid=EBC831D1E2BCE6D4&yid=14E7EF987E4155E6&vid=EA389574707BDED3&iid=708DD6B15D2464E8&sid=FE01B30EDB347E58&eid=004AE5CF627F0ACA&journal_id=1009-5896&journal_name=电子与信息学报&referenced_num=0&reference_num=8