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Proceedings Paper

Robust coherent laser radar design and signal processing for vibrometry
Author(s): Mille C. Millnert; Christina Carlsson; Christer Karlsson; Dietmar Letalick; Ingmar G. E. Renhorn
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Paper Abstract

A CO2-ladar system is used for measurements. The signal from the system is a sinusoidal FM-modulated multi-component signal. To extract the modulating frequencies time-frequency representations, e.g., the Wigner-Ville distribution and the Choi-Williams distribution are used. The estimation method is applied both to simulated and real data. Estimation of the vibration frequencies is shown to be feasible even for low SNR, e.g., -4 db.

Paper Details

Date Published: 26 June 1996
PDF: 8 pages
Proc. SPIE 2748, Laser Radar Technology and Applications, (26 June 1996); doi: 10.1117/12.243545
Show Author Affiliations
Mille C. Millnert, Linkoping Univ. (Sweden)
Christina Carlsson, National Defence Research Establishment (Sweden)
Christer Karlsson, National Defence Research Establishment (Sweden)
Dietmar Letalick, National Defence Research Establishment (Sweden)
Ingmar G. E. Renhorn, National Defence Research Establishment (Sweden)

Published in SPIE Proceedings Vol. 2748:
Laser Radar Technology and Applications
Gary W. Kamerman, Editor(s)

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