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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: James C. Wyant
  • Vol. 46, Iss. 22 — Aug. 1, 2007
  • pp: 4991–4998

Analytical estimation of solid angle subtended by complex well-resolved surfaces for infrared detection studies

Shripad P. Mahulikar, Santosh K. Potnuru, and Pankaj S. Kolhe  »View Author Affiliations


Applied Optics, Vol. 46, Issue 22, pp. 4991-4998 (2007)
http://dx.doi.org/10.1364/AO.46.004991


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Abstract

The solid angle (Ω) subtended by the hot power-plant surfaces of a typical fighter aircraft, on the detector of an infrared (IR) guided missile, is analytically obtained. The use of the parallel rays projection method simplifies the incorporation of the effect of the optical blocking by engine surfaces, on Ω-subtended. This methodology enables the evaluation of the relative contribution of the IR signature from well-resolved distributed sources, and is important for imaging infrared detection studies. The complex 3D surface of a rear fuselage is projected onto an equivalent planar area normal to the viewing aspect, which would give the same Ω-subtended.

© 2007 Optical Society of America

OCIS Codes
(040.3060) Detectors : Infrared
(110.3080) Imaging systems : Infrared imaging
(110.6820) Imaging systems : Thermal imaging

ToC Category:
Imaging Systems

History
Original Manuscript: December 8, 2006
Revised Manuscript: April 4, 2007
Manuscript Accepted: May 1, 2007
Published: July 6, 2007

Citation
Shripad P. Mahulikar, Santosh K. Potnuru, and Pankaj S. Kolhe, "Analytical estimation of solid angle subtended by complex well-resolved surfaces for infrared detection studies," Appl. Opt. 46, 4991-4998 (2007)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-46-22-4991


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References

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