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Proceedings Paper

New method analyzing laser Doppler effect based on the conclusions of laser speckle technology
Author(s): Xin Hong; Yuchi Lin; Meirong Zhao
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Paper Abstract

For the first time, time varying speckle analysis is made in the differential structure and time-space correlated function has been deduced, in which the relationship between Doppler frequency shift and speckle time correlated function is got. The traditional method can obviously analyze the Doppler frequency shift of the single particle tested, which is suitable for the condition of fluid measurement, while the signal is Doppler burst. Different from it, for the solid scattering surfaces, signal is similar to the continuous one and signal losing happens randomly due to the surface structure. Superior to the traditional one, our analyzing method connects the Doppler frequency shift with the scattering field, which has the advantage for the analysis of the signal losing.

Paper Details

Date Published: 9 October 2000
PDF: 4 pages
Proc. SPIE 4221, Optical Measurement and Nondestructive Testing: Techniques and Applications, (9 October 2000); doi: 10.1117/12.402654
Show Author Affiliations
Xin Hong, Tianjin Univ. (China)
Yuchi Lin, Tianjin Univ. (China)
Meirong Zhao, Tianjin Univ. (China)

Published in SPIE Proceedings Vol. 4221:
Optical Measurement and Nondestructive Testing: Techniques and Applications
FeiJun Song; Frank Chen; Michael Y.Y. Hung; H.M. Shang, Editor(s)

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