Title
Automatic Detection and Suppression of Parasitic Chirp Signals in the Intermediate Time–Frequency Domain
Abstract
The problem of automatic parasitic chirp components detection and suppression in a digital signal is considered. The detection is based on the calculation of the discrete Wigner distribution accompanied by the Hough transform. The filtration is achieved by a series of discrete fractional Fourier transforms converting the signal to special coordinates, where the entire energy of the parasitic signals is accumulated at a few samples and then reset. The main novelty is the utilization of new construction of discrete fractional Fourier transform coordinated with the discrete Wigner distribution. The advantages of the proposed approach are illustrated by the simulations.
Year
DOI
Venue
2020
10.1007/s00034-019-01302-y
Circuits, Systems, and Signal Processing
Keywords
DocType
Volume
Chirp signal, Fractional Fourier transform, Wigner distribution, Hough transform
Journal
39
Issue
ISSN
Citations 
6
0278-081X
0
PageRank 
References 
Authors
0.34
0
2
Name
Order
Citations
PageRank
P. E. Golubtsov100.34
I. I. Morozov200.34