Detection of chirp and other components in the time-frequency plane using the Hough and Radon transforms

Author

Krishnan, Sridhar ; Rangayyan, Rangaraj M.

Author_Institution

Dept. of Electr. & Comput. Eng., Calgary Univ., Alta., Canada

Volume

1

fYear

1997

fDate

20-22 Aug 1997

Firstpage

138

Abstract

We propose a novel approach to detect chirp (linear frequency modulated) components in multicomponent nonstationary signals in the time-frequency (TF) plane. The approach, based on the Hough and Radon transforms of TF distributions, can be used to detect chirp components with varying energy in unknown signal-to-noise ratio environments. In addition to detection of chirps, the proposed technique could also be used as a tool to evaluate the TF resolution provided by different TF analysis methods

Keywords

Hough transforms; Radon transforms; chirp modulation; frequency modulation; signal resolution; statistical analysis; time-frequency analysis; Hough transforms; Radon transforms; SNR; chirp detection; linear frequency modulated components; multicomponent nonstationary signals; signal to noise ratio; time-frequency analysis methods; time-frequency distributions; time-frequency plane; time-frequency resolution; varying energy; Chirp modulation; Drives; Energy resolution; Frequency modulation; Matching pursuit algorithms; Maximum likelihood detection; Radar detection; Signal resolution; Signal to noise ratio; Time frequency analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, Computers and Signal Processing, 1997. 10 Years PACRIM 1987-1997 - Networking the Pacific Rim. 1997 IEEE Pacific Rim Conference on

Conference_Location

Victoria, BC

Print_ISBN

0-7803-3905-3

Type

conf

DOI

10.1109/PACRIM.1997.619920

Filename

619920