Equalizer-combiner for diversity receiver, receiver incorporatin

Details Equalizer-combiner for diversity receiver, receiver incorporatin Equalizer-combiner for diversity receiver, receiver incorporatin

1997-06-19

1999-05-04

Pham, Chi H.

Pulse or digital communications

Equalizers

333 28R, 3647242, H03H 730, H03H 500, G06F 1710

Patent

active

059011742

ABSTRACT:
An equalizer-combiner for a diversity receiver using at least two receive channels computes equalization coefficients for each channel allowing for a first channel error signal representative of a comparison between the demodulated signal and a channel estimate of the transmitted source signal delivered by a channel estimator fed with the demodulated signal in the channel during an acquisition phase and a second channel error signal representative of a comparison between the demodulated signal and the global estimate of the transmitted source signal during a normal operation phase. The equalizer-combiner computes the weighting coefficients allowing for a first global error signal representative of a comparison between the combined signal and the global estimate of the source signal during the acquisition phase a second global error signal representative of a comparison between local reference information known to the receiver and corresponding received reference information periodically extracted from the global estimate during the normal operation phase.

REFERENCES:
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patent: 5499272 (1996-03-01), Bottomley
patent: 5644597 (1997-07-01), Ueda
Liu Qingli et al, "Performance of Decision-Feedback Equalizers with Dual Antenna Diversity", Personal Communication-Freedom Through Wireless Technology, Secaucus, NJ, May 18-20, 1993, No. Conf. 43, May 18, 1993, Institute of Electrical and Electronics Engineers, pp. 637-640.

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