Variations on Hough-wavelet transforms for time-frequency chirp detection | Zendy

Marcela Morvidone | Zendy; Bruno Torrsani | Zendy

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Variations on Hough-wavelet transforms for time-frequency chirp detection

Author(s) -

Marcela Morvidone,

Bruno Torrsani

Publication year - 2003

Publication title -

proceedings of spie, the international society for optical engineering/proceedings of spie

Language(s) - English

Resource type - Conference proceedings

SCImago Journal Rank - 0.192

H-Index - 176

eISSN - 1996-756X

pISSN - 0277-786X

DOI - 10.1117/12.505435

Subject(s) - chirp , wavelet , computer science , amplitude , time–frequency analysis , noise (video) , matched filter , algorithm , filter (signal processing) , detector , coherence (philosophical gambling strategy) , spectral density , physics , optics , artificial intelligence , computer vision , telecommunications , laser , image (mathematics) , quantum mechanics

International audienceSeveral different approaches for joint detection/estimation of amplitude and frequency modulated signals embedded in stationary random noise with prescribed spectral density are considered and compared. Matched filter approaches are compared to time-frequency and time scale based approaches, together with " reassigned " versions. Particular attention is paid to the case of the so-called " power-law chirps " , characterized by monomial and polynomial amplitude and frequency functions. As target application, the problem of gravitational waves at interferometric detectors is considered

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