Time-frequency analysis: theory and applications
Time-frequency analysis: theory and applications
A method for nonlinear system classification in the time-frequency plane
Signal Processing
Time-Frequency Analysis of Acoustic Transients
ICASSP '97 Proceedings of the 1997 IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP '97)-Volume 3 - Volume 3
Dynamics Using the Wigner Distribution
ICPR '00 Proceedings of the International Conference on Pattern Recognition - Volume 3
Approximation of the Wigner distribution for dynamical systems governed by differential equations
EURASIP Journal on Applied Signal Processing
The transient spectrum of a random system
IEEE Transactions on Signal Processing
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Time-frequency representations transform a one-dimensional function into a two-dimensional function in the phase-space of time and frequency. The transformation to accomplish is a nonlinear transformation and there are an infinite number of such transformations. We obtain the governing differential equation for any two-dimensional bilinear phase-space function for the case when the governing equation for the time function is an ordinary differential equation with constant coefficients. This connects the dynamical features of the problem directly to the phase-space function and it has a number of advantages.