Method and apparatus for channel tracking

Details Method and apparatus for channel tracking Method and apparatus for channel tracking

1998-01-16

2000-07-04

Chin, Stephen

Pulse or digital communications

Receivers

Interference or noise reduction

375229, 375232, 375233, 375347, H04B 110

Patent

active

060849290

ABSTRACT:
A method and apparatus for channel tracking is disclosed wherein pulse-shaping information is used to improve channel tracking performance. Information symbol values are prefiltered using the pulse shape information for a received baseband signal to generate a filtered waveform. The filtered waveform provides a reference signal for a medium response estimation. The estimated medium response is used with a coherent detector to detect unknown information symbols within the baseband signal. Medium response estimates can be determined for a single detected symbol sequence or for each hypothesized symbol sequence.

REFERENCES:
patent: 5263053 (1993-11-01), Wan et al.
patent: 5488638 (1996-01-01), Kazecki et al.
patent: 5621769 (1997-04-01), Wan et al.
patent: 5774504 (1998-06-01), Huszar et al.
patent: 5790598 (1998-08-01), Moreland et al.
patent: 5862192 (1999-01-01), Huszar et al.
patent: 5937014 (1999-08-01), Pelin et al.
Z. Ding et al., "Knowledge Based Identification of Fractionally Sampled Channels", Proceedings of the International Conference on Acoustics, Speech adn Signal Processing (ICASSP), Detroit, May 12, 1995, Statistical Signal and Array Processing, vol. 3, No. CONF. 20, May 9, 1995, pp. 1996-1999, XP000533091, IEEE.
W. C. Wong et al. "Multipath Fading Models and Adaptive Equalizers in Microwave Digital Radio", IEEE Transactions on Communications, vol. 32, No. 8, Aug. 1984, pp. 928-934, XP002104364, New York.
S. V. Shell et al. "Improved Performance of Blind Equalization Using Prior Knowledge of Transmitter Filter", Proceedings of the Military Communications Conference (MILCOM), Long Branch, NJ, Oct. 2-5, 1994, vol. 1, Oct. 2, 1994, pp. 128-132, XP000505873, IEEE.
P. Newson et al., "Model Based Adaptive Channel Identification Algorithms for Digital Mobile Radio", Serving Humanity Through Communications, SUPERCOM/ICC, New Orleans, May 1-5, 1994, vol. 3, May 1, 1994, pp. 1531-1535, XP000438752, IEEE.
G. M. Vachula and F. S. Hill, Jr.; On Optimal Detection of Band-Limited PAM Signals with Excess Bandwidth; Concise Papers, 1981 IEEE.

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