System and method for estimating noise power level in a...

Pulse or digital communications – Receivers

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C375S340000

Reexamination Certificate

active

07555064

ABSTRACT:
A system estimates noise power in a scalar, multi-signal communications channel. A data sampler collects N data samples from communications signals received from the communications channel. A module forms a covariance matrix of the N data samples based on a model order estimate. A module also computes the eigenvalue decomposition of the covariance matrix and ranks resultant eigenvalues from the minimum to the maximum for determining the noise power.

REFERENCES:
patent: 5694388 (1997-12-01), Sawahashi et al.
patent: 5757845 (1998-05-01), Fukawa et al.
patent: 6567462 (2003-05-01), Brunner et al.
patent: 6711528 (2004-03-01), Dishman et al.
patent: 6941123 (2005-09-01), Choi et al.
patent: 6993460 (2006-01-01), Beadle et al.
patent: 7062277 (2006-06-01), Rudowicz
patent: 7076001 (2006-07-01), Beadle et al.
patent: 7187326 (2007-03-01), Beadle et al.
patent: 2002/0039887 (2002-04-01), Delabbaye et al.
patent: 2004/0204922 (2004-10-01), Beadle et al.
patent: 2006/0269017 (2006-11-01), Beadle et al.
patent: 2006/0269027 (2006-11-01), Beadle et al.
Chang et al., “A Matrix-Pencil Approach to Blind Separation of Colored Nonstationary Signals,” IEEE Transactions on Signal Processing, vol. 48, No. 3, Mar. 2000, pp. 900-907.
Parra et al., “Blind Source Separation via Generalized Eigenvalue Decomposition,” Journal of Machine Learning Research 4 (2003), pp. 1261-1269.
Steven M. Kay, Modern Spectral Estimation: Theory and Application, Prentice Hall, Jan. 1988, Section 13.9—Noise Subspace Frequency Estimation, pp. 429-431.
Dan et al., “On the Blind SNR Estimation for IF Signals,” Proceedings of the First International Conference on Innovative Computing, Information and Control, IEEE, 2006, 4 pages.
Pauluzzi et al., “A Comparison of SNR Estimation Techniques for the AWGN Channel,” IEEE Transactions on Communications, vol. 48, No. 10, Oct. 2000, pp. 1681-1691.
Lee et al., “Joint Estimation of the Space-Time Distributed Signal Parameters,” IEEE, Vehicular Technology Conference (VTC) 2000, pp. 822-828.
Benedict et al., “The Joint Estimation of Signal and Noise from the Sum Envelope,” IEEE Transactions on Information Theory, vol. IT-13, No. 3, Jul. 1967, pp. 447-454.
Beaulieu et al., “Comparison of Four SNR Estimators for QPSK Modulations,” IEEE Communications Letters, vol. 4, No. 2, Feb. 2000, pp. 43-45.
Celandroni et al., “Quality Estimation of PSK Modulated Signals, ” IEEE Communications Magazine, Jul. 1997, pp. 50-55.
Matzner, “An SNR Estimation Algorithm for Complex Baseband Signals Using Higher Order Statistics,” Electronics and Energetics, vol. 6, No. 1, 1993, pp. 41-52.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

System and method for estimating noise power level in a... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with System and method for estimating noise power level in a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and method for estimating noise power level in a... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-4141077

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.