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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 51, Iss. 36 — Dec. 20, 2012
  • pp: 8625–8636

Joint influences of aerodynamic flow field and aerodynamic heating of the dome on imaging quality degradation of airborne optical systems

Haosu Xiao, Baojun Zuo, Yi Tian, Wang Zhang, Chenglong Hao, Chaofeng Liu, Qi Li, Fan Li, Li Zhang, and Zhigang Fan  »View Author Affiliations


Applied Optics, Vol. 51, Issue 36, pp. 8625-8636 (2012)
http://dx.doi.org/10.1364/AO.51.008625


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Abstract

We investigated the joint influences exerted by the nonuniform aerodynamic flow field surrounding the optical dome and the aerodynamic heating of the dome on imaging quality degradation of an airborne optical system. The Spalart–Allmaras model provided by FLUENT was used for flow computations. The fourth-order Runge–Kutta algorithm based ray tracing program was used to simulate optical transmission through the aerodynamic flow field and the dome. Four kinds of imaging quality evaluation parameters were presented: wave aberration of the exit pupil, point spread function, encircled energy, and modulation transfer function. The results show that the aero-optical disturbance of the aerodynamic flow field and the aerodynamic heating of the dome significantly affect the imaging quality of an airborne optical system.

© 2012 Optical Society of America

OCIS Codes
(000.4430) General : Numerical approximation and analysis
(080.2710) Geometric optics : Inhomogeneous optical media
(080.2720) Geometric optics : Mathematical methods (general)
(110.3000) Imaging systems : Image quality assessment

History
Original Manuscript: October 1, 2012
Revised Manuscript: November 20, 2012
Manuscript Accepted: November 20, 2012
Published: December 17, 2012

Citation
Haosu Xiao, Baojun Zuo, Yi Tian, Wang Zhang, Chenglong Hao, Chaofeng Liu, Qi Li, Fan Li, Li Zhang, and Zhigang Fan, "Joint influences of aerodynamic flow field and aerodynamic heating of the dome on imaging quality degradation of airborne optical systems," Appl. Opt. 51, 8625-8636 (2012)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-51-36-8625

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