Wavefront sensing and control for a Next-Generation Space Telescope

Details Wavefront sensing and control for a Next-Generation Space Telescope Wavefront sensing and control for a Next-Generation Space Telescope

Aug 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998spie.3356..758r&link_type=abstract

Proc. SPIE Vol. 3356, p. 758-772, Space Telescopes and Instruments V, Pierre Y. Bely; James B. Breckinridge; Eds.

Computer Science

Performance

4

Scientific paper

The Next Generation Space Telescope will depart from the traditional means of providing high optical quality and stability, namely use of massive structures. Instead, a benign orbital environment will provide stability for a large, flexible, lightweight deployed structure, and active wavefront controls will compensate misalignments and figure errors induced during launch and cool-down on orbit. This paper presents a baseline architecture for NGST wavefront controls, including initial capture and alignment, segment phasing, wavefront sensing and deformable mirror control. Simulations and analyses illustrate expected scientific performance with respect to figure error, misalignments, and thermal deformation.

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