ADAPTIVE SUBBAND DECOMPOSITIONS FOR ARBITRARY TIME-FREQUENCY TILINGS
Small Business Information
2243 Chimney Swift Circle, Marietta, GA, 30062
Jay Scott Goldstein
AbstractThe 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.
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