Parameter estimation for modulated signals

Details Parameter estimation for modulated signals Parameter estimation for modulated signals

2008-08-11

2011-11-08

Tran, Khanh C (Department: 2611)

Pulse or digital communications

Receivers

Interference or noise reduction

Reexamination Certificate

active

08054922

ABSTRACT:
A system includes a receiver for receiving a modulated signal. The receiver includes a gain estimator for converting complex data representative of constellation points of the modulated signal into scalar data representation. The gain estimator is configured to fold a first portion of the scalar data representation onto a second portion of the scalar data representation. The gain estimator is further configured to estimate a constellation gain value from the folded first portion and the second portion of the scalar data representation.

REFERENCES:
patent: 6052037 (2000-04-01), Kaku et al.
patent: 2009/0161796 (2009-06-01), Fisher-Jeffes
patent: 1 855 393 (2007-11-01), None
Parker, “Techniques for the Blind Estimation of Signal to Noise Ratio for Quadrature Modulated Signals,” International Symposium on Signal Processing and its Applications, ISSPA, Gold Coast, Australia, Aug. 25-30, 1996, pp. 238-241.

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