Pulse or digital communications – Receivers – Angle modulation
Reexamination Certificate
2011-04-19
2011-04-19
Wang, Ted M (Department: 2611)
Pulse or digital communications
Receivers
Angle modulation
C375S348000, C375S329000, C375S316000, C375S346000
Reexamination Certificate
active
07929643
ABSTRACT:
The method is for estimating the fading coefficients of a plurality of transmission channels on which signals to be sent, generated as a function of a sequence of symbols, are transmitted according to a particular modulation, e.g. AM-PSK modulation. The fading coefficients are estimated by using estimations of the transmitted symbols obtained in advance, thus obtaining DC components of the received signal by coherent demodulation locked to the phases of the transmitted AM-PSK signals, and processing these DC components. The method may not require the choice of a stochastic distribution model of the channel fading, thus it remains efficient even when the channel characteristics vary significantly. Moreover, the method works correctly even if the received stream is disturbed by inter-symbolic interference (ISI) and/or by multi-path fading.
REFERENCES:
patent: 6201799 (2001-03-01), Huang et al.
patent: 6504884 (2003-01-01), Zvonar
patent: 7251291 (2007-07-01), Dubuc et al.
Avellone Giuseppe
Visalli Giuseppe
Allen Dyer Doppelt Milbrath & Gilchrist, P.A.
Jorgenson Lisa K.
STMicroelectronics S.r.l.
Wang Ted M
LandOfFree
Method of estimating fading coefficients of channels and of... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of estimating fading coefficients of channels and of..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of estimating fading coefficients of channels and of... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2739697