Title :
High-speed moving source analysis using chirplets
Author :
Valiere, J.C. ; Poisson, F. ; Depollier, C. ; Simon, L.
Author_Institution :
Lab. d´´Acoust., Maine Univ., Le Mans, France
fDate :
5/1/1999 12:00:00 AM
Abstract :
This article introduces a new method for localizing high-speed moving sources with a microphone array followed by a chirplet transform. A well-adapted chirplet is constructed and the accuracy of the method is studied within a general case. Simulations and real data from the high-speed train (Train a Grande Vitesse), are compared with the current deDopplerization method.
Keywords :
Doppler effect; acoustic signal processing; acoustic transducer arrays; array signal processing; microphones; noise abatement; railways; transforms; accuracy; chirplet transform; deDopplerization method; high-speed moving source analysis; high-speed train; microphone array; noise reduction; railway transportation; real data; simulations; Acoustic measurements; Acoustic noise; Apertures; Chirp; Doppler effect; Frequency modulation; Microphone arrays; Rail transportation; Time frequency analysis; Working environment noise;
Journal_Title :
Signal Processing Letters, IEEE
