Title :
High-speed moving sources analysis
Author :
Poisson, Franck ; Depollier, Claude ; Coste, Olivier
Author_Institution :
Inst. d´´Acoust. et de Mecanique, LAUM, Le Mans, France
Abstract :
This article describes the first step of moving acoustic sources analysis. Time-frequency and time-scale tools are used to characterize the signal received on a fixed microphone. It permits one to improve localisation methods. Simulations are presented in case of a sinusoidal source. An experiment with a known source fixed on a high speed train (TGV) is carried out. Then, the signal of a TGV coming by in real operating conditions is analysed
Keywords :
acoustic radiators; acoustic signal processing; microphones; railways; time-frequency analysis; TGV; high speed train; high-speed moving sources analysis; localisation methods; microphone; moving acoustic sources analysis; railway transportation; real operating conditions; simulations; sinusoidal source; time-frequency tools; time-scale tools; wavelet transforms; Acoustic measurements; Acoustic testing; Energy measurement; Frequency measurement; Loudspeakers; Microphones; Position measurement; Signal resolution; Time frequency analysis; Wavelet analysis;
Conference_Titel :
Time-Frequency and Time-Scale Analysis, 1996., Proceedings of the IEEE-SP International Symposium on
Conference_Location :
Paris
Print_ISBN :
0-7803-3512-0
DOI :
10.1109/TFSA.1996.550076
