Title :
Wigner-based formulation of the chirplet transform
Author :
Baraniuk, Richard G. ; Jones, Douglas L.
Author_Institution :
Dept. of Electr. & Comput. Eng., Rice Univ., Houston, TX, USA
fDate :
12/1/1996 12:00:00 AM
Abstract :
Using the Wigner distribution, we derive and analyze a matrix formulation for the chirplet transform, a signal analysis tool that generalizes the wavelet and short-time Fourier transforms. The formulation expresses the translations, scalings, and shears of the chirplet transform in terms of affine matrix transformations on the time-frequency plane. Our approach leads naturally to several new signal transforms, which we derive, analyze, and extend
Keywords :
Fourier transforms; Wigner distribution; matrix algebra; signal representation; time-frequency analysis; wavelet transforms; Wigner based formulation; Wigner distribution; affine matrix transformations; chirplet transform; matrix formulation; scalings; shears; short-time Fourier transforms; signal analysis tool; signal representation; signal transforms; time-frequency plane; translations; wavelet transforms; Adaptive filters; Chirp; Convergence; Error correction; Finite impulse response filter; Fourier transforms; Frequency domain analysis; Partitioning algorithms; Signal analysis; Signal processing algorithms;
Journal_Title :
Signal Processing, IEEE Transactions on