Title :
Affine Wigner distributions
Author :
Shenoy, R.G. ; Parks, T.W.
Author_Institution :
Schlumberger-Doll Res., Ridgefield, CT, USA
Abstract :
A symmetrized version of the wideband ambiguity function is proposed, by observing the relationship between ambiguity functions and the theory of certain groups. Its 2-D Fourier transform has properties similar to the Wigner distribution, and it is called the affine Wigner distribution, by analogy. This approach is compared with earlier work by R.A. Altes (1989) and by O. Rioul and P. Flandrin (1990)
Keywords :
Fourier transforms; group theory; signal processing; spectral analysis; transforms; 2-D Fourier transform; affine Wigner distribution; group theory; signal processing; symmetric ambiguity function; wideband ambiguity function; Contracts; Doppler shift; Fourier transforms; Narrowband; Signal processing; Spectrogram; Statistical distributions; Time frequency analysis; Wavelet transforms; Wideband;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1992. ICASSP-92., 1992 IEEE International Conference on
Conference_Location :
San Francisco, CA
Print_ISBN :
0-7803-0532-9
DOI :
10.1109/ICASSP.1992.226539
