DocumentCode
1427796
Title
Combination of Kalman filter and constant modulus algorithm with variable stepsize for the equalisation of fast-fading channels
Author
Pora, W. ; Chambers, J.A. ; Constantinides, A.G.
Author_Institution
Dept. of Electr. Eng., Imperial Coll. of Sci., Technol. & Med., London, UK
Volume
34
Issue
18
fYear
1998
fDate
9/3/1998 12:00:00 AM
Firstpage
1718
Lastpage
1719
Abstract
In fast-fading channels, the constant modulus algorithm (CMA) is unable to properly track the time-variations because the magnitude of the received signal changes too rapidly. The Kalman filter (KF), however, works well in time-varying channels but needs a training sequence to operate. Therefore, a combined CMA and KF algorithm is proposed in order to utilise the advantages of both algorithms. The associated step sizes of the CMA and the KF algorithm are also varied in accordance with the magnitude of the output. Simulations are presented to demonstrate the potential of the combination
Keywords
Kalman filters; equalisers; fading; mobile communication; telecommunication channels; Kalman filter; constant modulus algorithm; equalisation; fast-fading channels; magnitude; step sizes; time-variations; training sequence; variable stepsize;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:19981233
Filename
715342
Link To Document