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Applied Optics

Applied Optics


  • Vol. 44, Iss. 8 — Mar. 10, 2005
  • pp: 1485–1490

Small-angle goniometry for backscattering measurements in the broadband spectrum

Sanna Kaasalainen, Jouni Peltoniemi, Jyri Näränen, Juha Suomalainen, Mikko Kaasalainen, and Folke Stenman  »View Author Affiliations

Applied Optics, Vol. 44, Issue 8, pp. 1485-1490 (2005)

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We present experiments on spectral bidirectional reflectance distribution function (BRDF) effects at backscatter and discuss the feasibility of new methods for laboratory and field simulations of remote sensing of land surfaces. The extreme sharpness of the intensity peak allows both directional and comparative experimental spectral studies of hot spots. We demonstrate wavelength-dependent features in the hot-spot reflectance signatures that facilitate extension of spectral and directional BRDF measurements of natural targets (such as forest understories and ice surfaces) into retroreflection to exploit their hot-spot characteristics in the interpretation of spaceborne and airborne data.

© 2005 Optical Society of America

OCIS Codes
(280.0280) Remote sensing and sensors : Remote sensing and sensors
(290.1350) Scattering : Backscattering
(290.5820) Scattering : Scattering measurements

Original Manuscript: June 25, 2004
Revised Manuscript: October 19, 2004
Manuscript Accepted: November 4, 2004
Published: March 10, 2005

Sanna Kaasalainen, Jouni Peltoniemi, Jyri Näränen, Juha Suomalainen, Mikko Kaasalainen, and Folke Stenman, "Small-angle goniometry for backscattering measurements in the broadband spectrum," Appl. Opt. 44, 1485-1490 (2005)

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