ADAPTIVE SUBBAND DECOMPOSITIONS FOR ARBITRARY TIME-FREQUENCY TILINGS

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N/A
Agency Tracking Number: 29025
Amount: $77,862.00
Phase: Phase I
Program: SBIR
Awards Year: 1995
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
Adaptronics, Inc.
2243 Chimney Swift Circle, Marietta, GA, 30062
DUNS: N/A
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Jay Scott Goldstein
 (404) 874-9856
Business Contact
Phone: () -
Research Institution
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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