A Kalman Equalizer for Channels with Long Impulse Responses

• Main Authors: Lan, Ching-Fu, 藍景賦
• Other Authors: Wen-Rong Wu
• Format: Others
• Language: zh-TW
• Published: 1996
• Online Access: http://ndltd.ncl.edu.tw/handle/77974736775906942900

碩士 === 國立交通大學 === 電信工程研究所 === 84 === There are many algorithms dealing with channel equalization. However, if the impulse response of the channel is long, most of them cannot be applied. In this thesis, we develop an efficient Kalman equalizer that can overcome this problem. We first formulate the problem of equalization in the state-space domain. Then, we derive a closed form solution for the steady-state Kalman gain. Finally, this Kalman gain is used in the filte- ring proocess. Thus, the Kalman filtering does not requires any matrix operations and a tremendous reduction in computation is obtained. Simula- tion results demonstrate that our approach is superior to conventioal me- thods not only in computational complexities but also in equalized results.