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Title:Applications and Extensions of Quadratic Signal Representations
Author(s):Roberts, David Scott
Doctoral Committee Chair(s):Jones, Douglas L.
Department / Program:Electrical Engineering
Discipline:Electrical Engineering
Degree Granting Institution:University of Illinois at Urbana-Champaign
Degree:Ph.D.
Genre:Dissertation
Subject(s):Engineering, Biomedical
Abstract:The second part of the dissertation concentrates on developing nonnegative, high-resolution TFRs that correspond with intuitive notions of energy distribution. These so-called consistent TFRs are developed by requiring the desired representation to be consistent with a set of spectrogram-based energy measurements. The desired representation is obtained as the solution to a constrained-optimization problem. The optimization problem can be solved using a gradient-projection technique. The consistent TFR demonstrates superior performance compared to existing techniques on a variety of test signals as well as on actual biological data. The result is a high-resolution, nonnegative, intuitively satisfying TFR that should prove to be an excellent tool for exploratory analysis.
Issue Date:2002
Type:Text
Language:English
Description:104 p.
Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2002.
URI:http://hdl.handle.net/2142/80803
Other Identifier(s):(MiAaPQ)AAI3070422
Date Available in IDEALS:2015-09-25
Date Deposited:2002


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