ADAPTIVE SUBBAND DECOMPOSITIONS FOR ARBITRARY TIME-FREQUENCY TILINGS

Award Information
Agency:
Department of Defense
Branch
Navy
Amount:
$77,862.00
Award Year:
1995
Program:
SBIR
Phase:
Phase I
Contract:
n/a
Award Id:
29025
Agency Tracking Number:
29025
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
2243 Chimney Swift Circle, Marietta, GA, 30062
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
Jay Scott Goldstein
(404) 874-9856
Business Contact:
() -
Research Institute:
n/a
Abstract
The extension of classical frequency domain and wavelet transformation adaptive subband decompositions result in arbitrary time frequency til. The use of a time-varying tree-structured filterbank is proposed to provide a signal dependent transform which is capable of tracking non-stationarities via local reconfigurations. Under stationary assemptions, the filterbank converges to a unitary operator. The time-frequency information can then be used to reduce the model order thereby reducing computational complexity. A unique framework will be developed to unify the time-frequency, signal subspace, and basis vector representation viewpoints within adaptive subband decompositions.

* information listed above is at the time of submission.

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