Multi-channel signal separation using cross-polyspectra

Electrical audio signal processing systems and devices – Noise or distortion suppression – Interpolation

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

H04B 1500

Patent

active

055398324

ABSTRACT:
A signal processing system includes a plurality of detectors for detecting signals, each detector receiving signals from plural sources; and a processor for receiving the detected signals and producing a reconstruction filter for filtering the detected signals to produce reconstructed source signals in which each source signal is reconstructed without interference from the other source signals. The reconstruction filter is produced such that cross-polyspectra of the reconstructed signals are forced to approach zero.

REFERENCES:
patent: 3935574 (1976-01-01), Pentheroudakis
patent: 4283795 (1981-08-01), Steinberger
patent: 4320535 (1982-03-01), Brady et al.
patent: 4473906 (1984-09-01), Warnaka et al.
patent: 4499601 (1985-02-01), Matthews et al.
patent: 4672674 (1987-06-01), Clough et al.
patent: 5020540 (1991-06-01), Chamoun
patent: 5208786 (1993-05-01), Weinstein et al.
patent: 5237618 (1993-08-01), Bethel
Widrow et al., "Adaptive Noise Cancelling: Principles and Applications," IEEE vol. 63, No. 12 (Dec. 1975), pp. 1692-1716.
International Conference on Acoustics Speech and Signal Processing vol. 4, No. E6.5, 26 May 1989, Glasgow, GB pp. 2322-2324. Dianat et al.
Signal Processing, vol. 24, No. 1, Jul. 1991, pp. 11-20 Comon et al.
S. W. Nam, et al., "Utilization of Digital Polyspectral Analysis to Estimate Transfer Functions . . . " IEEE, CH 2673-2/89/0000-2306, Feb. 1989.
Brooks, Dana H.; "The Cross-Bicepstrum: Properties and Applications for signal Reconstruction and System Identification" IEEE, CH2977-7/91/0000-3433.
Forster, Phillippe; "Bearing Estimation in the Bispectral Domain" IEEE Trans. Signal Processing vol. 39 No. 9, Sep. 1991.
Tachi, S., "Separation of a Periodic Signal in Noise by Bispectrum Analysis," Dec. 1973, Trans. Soc Ins & Contrsl Eng. vol. 9, No. 6 pp. 729-738.
Chang, Michael M. et al. "Blur Identification Using the Bispectrum," IEEE Trans. Sig, Proc. vol. 39 No. 10, Oct. 1991.
Petropulu, Athina P. et al., "Blind Deconvolution Using Signal Reconstruction . . . " IEEE Trans Sig. Proc vol. 41 No. 6, Jun. 1993.
Widrow and Stearm, Adaptive Signal Processing, 1985, pp. 128-131.

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

Multi-channel signal separation using cross-polyspectra does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Multi-channel signal separation using cross-polyspectra, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multi-channel signal separation using cross-polyspectra will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-720273

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