DocumentCode
1275976
Title
Instantaneous frequency and conditional moments in the time-frequency plane
Author
Poletti, Mark A.
Volume
39
Issue
3
fYear
1991
fDate
3/1/1991 12:00:00 AM
Firstpage
755
Lastpage
756
Abstract
The conditional moments of frequency of a time-frequency distribution are discussed, and it is shown that they may be related to the derivative of the log of the corresponding signal, a complex function whose imaginary part is the instantaneous frequency. For the complex energy spectrum, a general form for the moments is obtained. For a signal which is the sum of several other signals, the instantaneous frequency will always demonstrate erratic behavior
Keywords
signal processing; complex energy spectrum; complex signals; conditional moments; dynamic signals; instantaneous frequency; time-frequency plane; Chirp modulation; Frequency modulation; Genetic expression; H infinity control; Kernel; Tiles; Time frequency analysis; Time measurement;
fLanguage
English
Journal_Title
Signal Processing, IEEE Transactions on
Publisher
ieee
ISSN
1053-587X
Type
jour
DOI
10.1109/78.80866
Filename
80866
Link To Document