Title :
On the use of operators versus warpings versus axiomatic definitions of new time-frequency (operator) representations
Author :
Boudreaux-Bartels, G. Faye
Author_Institution :
Dept. of Electr. Eng., Rhode Island Univ., Kingston, RI, USA
fDate :
31 Oct-2 Nov 1994
Abstract :
The paper gives an overview of three techniques for deriving new time-frequency-scale representations, emphasizing their relative advantages and disadvantages. The three techniques considered are Cohen´s (1989) generalized characteristic function method, the axiomatic approach, and unitary transformation methods
Keywords :
signal representation; time-frequency analysis; transforms; Cohen´s generalized characteristic function; axiomatic approach; axiomatic definitions; multi-dimensional representation; non-stationary signals analysis; one dimensional signal; operators; time-frequency operator representations; time-frequency-scale representations; time-varying characteristics; unitary transformation methods; warpings; Eigenvalues and eigenfunctions; Fourier transforms; Integral equations; Kernel; Signal analysis; Signal representations; Spectrogram; Taylor series; Time frequency analysis;
Conference_Titel :
Signals, Systems and Computers, 1994. 1994 Conference Record of the Twenty-Eighth Asilomar Conference on
Conference_Location :
Pacific Grove, CA
Print_ISBN :
0-8186-6405-3
DOI :
10.1109/ACSSC.1994.471412
