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Proceedings of 1994 28th Asilomar Conference on Signals, Systems and Computers (1994)
Pacific Grove, CA, USA
Oct. 31, 1994 to Nov. 2, 1994
ISSN: 1058-6393
ISBN: 0-8186-6405-3
pp: 1428-1432
D. Reynolds , ManTech. Int. Corp., USA
C. Sims , ManTech. Int. Corp., USA
Extended Kalman filters have been suggested for adaptive equalization of digital communication channels. They are designed from a state space structure that describes the dynamics of both the transmission of the digital signals as well as the properties of the channel. When the channel is modeled as a finite impulse response filter with many taps, the extended Kalman filter would be unacceptable for high speed operation due to the required number of calculations. In this paper we provide a reduced-order alternative, which can require fewer calculations because of its ability to estimate states of interest, while ignoring other states and at the same time giving performance that can be almost as good as the full-order extended Kalman filter.<>
digital communication, adaptive Kalman filters, reduced order systems, adaptive equalisers, state-space methods, telecommunication channels, FIR filters, computational complexity, adaptive estimation, intersymbol interference, phase shift keying, quadrature amplitude modulation

D. Reynolds, C. Sims and L. Tong, "Adaptive equalization of a digital communications channel with a reduced-order equalizer," Proceedings of 1994 28th Asilomar Conference on Signals, Systems and Computers(ACSSC), Pacific Grove, CA, USA, 1995, pp. 1428-1432.
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