Airborne telescope with large aperture

Details Airborne telescope with large aperture Airborne telescope with large aperture

May 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990spie.1221..414p&link_type=abstract

IN: Propagation of high-energy laser beams through the earth's atmosphere; Proceedings of the Meeting, Los Angeles, CA, Jan. 15-

Computer Science

Performance

Airborne Equipment, Aircraft Instruments, Optical Properties, Reflecting Telescopes, Turbulence Models, Apertures, Flow Distribution, Navier-Stokes Equation, Refractivity, Reynolds Number

Scientific paper

The detailed calculations presented for the optical quality of a large-aperture airborne telescope, whose open-fuselage platform aircraft will cruise at high altitude and at near-sonic speed, give attention to the optical degradation of telescope performance by the aerodynamic and flight-dynamic environment. It is established that, while phase degradation is not severe, the aircraft boundary layer acts to tilt the beam to a degree that is not negligible. The mechanical torques acting on the telescope are strong, and may affect system performance to a degree requiring careful preventive design of the telescope structure.

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