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Proceedings Paper

HST phase retrieval: a parameter estimation
Author(s): Richard G. Lyon; Peter E. Miller; Anthony Grusczak
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Paper Abstract

It was found, on orbit, that the Hubble Space Telescope had a conic constant error in the primary mirror. The result of the error is a substantial amount of spherical aberration in the image, significantly reducing image resolution and encircled energy. Parametric phase retrieval was the method used to determine the source of error and to find the magnitude from on-board camera images. The parameters which are estimated are a set of annular Zernike polynomials which are analogous to the classical aberrations. This was one of the first practical uses of phase retrieval for on-orbit measurement. This paper contains an overview of the algorithms, how they were used and the major results.

Paper Details

Date Published: 1 December 1991
PDF: 10 pages
Proc. SPIE 1567, Applications of Digital Image Processing XIV, (1 December 1991); doi: 10.1117/12.50826
Show Author Affiliations
Richard G. Lyon, Hughes Danbury Optical Systems (United States)
Peter E. Miller, Hughes Danbury Optical Systems (United States)
Anthony Grusczak, Hughes Danbury Optical Systems (United States)

Published in SPIE Proceedings Vol. 1567:
Applications of Digital Image Processing XIV
Andrew G. Tescher, Editor(s)

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