Quasi-Newton Based Kalman Filter Channel Estimation for OFDM Systems

被引：0
|
作者：
Nam, Seung-Hyun [1 ]
Kim, Hee Wook [1 ]
Kang, Kunseok [1 ]
Ahn, Do-Seob [1 ]
Lee, Ho-Jin [1 ]
机构：
[1] Elect & Telecommun Res Inst, Taejon 305606, South Korea
来源：
2010 DIGEST OF TECHNICAL PAPERS INTERNATIONAL CONFERENCE ON CONSUMER ELECTRONICS ICCE | 2010年
关键词：
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this paper, Kalman filter method has been used for the estimate of time variant channels in OFDM systems. The estimation is based on Comb-type pilot in frequency domain. The channel coefficients that belong to the pilot subcarriers are estimated by Kalman filter. To reduce complexity, quasi-Newton methods are adapted for updating the gain of Kalman filter. Then, we can estimate channel parameter except for the inverse matrix which needs high complexity by using quasi-Newton methods.
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页数：2
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