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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: James C. Wyant
  • Vol. 46, Iss. 31 — Nov. 1, 2007
  • pp: 7579–7586

Online estimation of vapor path-integrated concentration and absorptivity using multiwavelength differential absorption lidar

Russell E. Warren and Richard G. Vanderbeek  »View Author Affiliations


Applied Optics, Vol. 46, Issue 31, pp. 7579-7586 (2007)
http://dx.doi.org/10.1364/AO.46.007579


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Abstract

Differential absorption lidar data processing traditionally assumes knowledge of the spectral dependence of the absorptivity coefficients. While this is sometimes a good assumption, it is often not in complicated collection environments where the material present is ambiguous. We present an alternative approach that estimates the vapor path-integrated concentration (CL) and absorptivity (ρ) in parallel by a processor capable of online implementation. The algorithm is based on an extended Kalman filter (EKF) for CL and a sequential maximum likelihood estimator for ρ. The state model parameters of the EKF are also estimated sequentially together with CL and ρ. The approach is illustrated on simulated and real topographic backscatter lidar data collected by the Edgewood Chemical Biological Center.

© 2007 Optical Society of America

OCIS Codes
(070.0070) Fourier optics and signal processing : Fourier optics and signal processing
(280.1910) Remote sensing and sensors : DIAL, differential absorption lidar
(280.3640) Remote sensing and sensors : Lidar

ToC Category:
Remote Sensing and Sensors

History
Original Manuscript: May 1, 2007
Revised Manuscript: September 7, 2007
Manuscript Accepted: September 18, 2007
Published: October 22, 2007

Citation
Russell E. Warren and Richard G. Vanderbeek, "Online estimation of vapor path-integrated concentration and absorptivity using multiwavelength differential absorption lidar," Appl. Opt. 46, 7579-7586 (2007)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-46-31-7579


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