Title :
Instantaneous mean qualities in time-frequency analysis
Author :
Lee, Chongmoon ; Cohen, Leon
Author_Institution :
Hunter Coll., City Univ., New York, NY, USA
Abstract :
The authors present two different approaches for the calculation of instantaneous quantities in joint time-frequency analysis. They specialize it to the case of instantaneous mean frequency and its spread. They consider bilinear distributions such as the Wigner and Rihaczek distributions and show that there are an infinite number of bilinear distributions which give positive expressions for the standard deviation of frequency at a given time
Keywords :
linear systems; nonlinear systems; signal processing; time-domain analysis; Wigner and Rihaczek distributions; bilinear distributions; instantaneous quantities; standard deviation; standard frequency distribution; time-frequency analysis; Educational institutions; Kinetic energy; Quantum mechanics; Time frequency analysis;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1988. ICASSP-88., 1988 International Conference on
Conference_Location :
New York, NY
DOI :
10.1109/ICASSP.1988.197068
