Frequency tracking based analysis of laser Doppler velocimetry signals for sound field measurements

Author

Valeau, V. ; Mellet, C. ; Valiere, J.-C.

Author_Institution

Lab. d´´Acoust. et de Mecanique, Maine Univ., Le Mans, France

Volume

3

fYear

1999

fDate

1999

Firstpage

1453

Abstract

This presentation discusses the comparison of three instantaneous frequency trackers in the context of the application of laser Doppler velocimetry to acoustic particle-velocity measurements. The first estimator is based on the cross Wigner-Ville transform (CWV), the second is the time-frequency synchronous transform (TFST) optimised for sine wave frequency modulated signals and the third is an adaptation of Kalman filtering. The performance of each estimator is studied in terms of bias and variance using simulations. The performance of these estimators in real conditions is also considered

Keywords

Kalman filters; Wigner distribution; acoustic field; acoustic wave velocity measurement; laser velocimetry; particle velocity analysis; time-frequency analysis; Kalman filtering; acoustic particle-velocity measurements; bias; cross Wigner-Ville transform; instantaneous frequency trackers; laser Doppler velocimetry signals; sine wave frequency modulated signals; sound field measurements; time-frequency synchronous transform; variance; Acoustic applications; Acoustic measurements; Frequency estimation; Frequency measurement; Frequency modulation; Kalman filters; Laser velocimetry; Particle measurements; Particle tracking; Time frequency analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronics, Circuits and Systems, 1999. Proceedings of ICECS '99. The 6th IEEE International Conference on

Conference_Location

Pafos

Print_ISBN

0-7803-5682-9

Type

conf

DOI

10.1109/ICECS.1999.814443

Filename

814443