A Novel H∞ Channel Estimator Design Method For DS-CDMA Communication Systems
In the communications literature, a number of different algorithms have been proposed for channel estimation problems with the statistics of the channel noise and observation noise exactly known. In practical systems, however, the channel parameters are often estimated using training sequences which lead to the statistics of the channel noise dif.cult to obtain. Moreover, the received signals are corrupted not only by the ambient noises but also by multiple-access interferences, so the statistics of observation noises are also dif.cult to obtain. In this paper, we will investigate the H∞ channel estimation problem for directsequence code-division multiple-access (DS-CDMA) communication systems with time-varying multipath fading channels. The channel estimator is designed by applying a partial difference equation approach together with the innovation analysis theory. This method can give an suf.cient and necessary condition for the existence of an H∞ channel estimator.
WANG Wei ZHANG Huanshui JIANG Xiangyuan
School of Control Science and Engineering, Shandong University, Jinan, 250061, P.R.China
国际会议
The 30th Chinese Control Conference(第三十届中国控制会议)
烟台
英文
1-6
2011-07-01（万方平台首次上网日期，不代表论文的发表时间）