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Chinese Optics Letters

Chinese Optics Letters

| PUBLISHED MONTHLY BY CHINESE LASER PRESS AND DISTRIBUTED BY OSA

  • Vol. 4, Iss. 8 — Aug. 10, 2006
  • pp: 453–456

Kalman filtering techniques for reducing variance of digital speckle displacement measurement noise

Donghui Li and Li Guo  »View Author Affiliations


Chinese Optics Letters, Vol. 4, Issue 8, pp. 453-456 (2006)


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Abstract

Target dynamics are assumed to be known in measuring digital speckle displacement. Use is made of a simple measurement equation, where measurement noise represents the effect of disturbances introduced in measurement process. From these assumptions, Kalman filter can be designed to reduce variance of measurement noise. An optical and analysis system was set up, by which object motion with constant displacement and constant velocity is experimented with to verify validity of Kalman filtering techniques for reduction of measurement noise variance.

© 2006 Chinese Optics Letters

OCIS Codes
(030.6140) Coherence and statistical optics : Speckle
(070.6020) Fourier optics and signal processing : Continuous optical signal processing
(120.3940) Instrumentation, measurement, and metrology : Metrology

Citation
Donghui Li and Li Guo, "Kalman filtering techniques for reducing variance of digital speckle displacement measurement noise," Chin. Opt. Lett. 4, 453-456 (2006)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-4-8-453


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