Statistics – Applications
Scientific paper
Mar 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991nasa.reptq....m&link_type=abstract
Patent Application National Aeronautics and Space Administration. Pasadena Office, CA.
Statistics
Applications
Far Fields, Mirrors, Reflectors, Segments, Telescopes, Attitude (Inclination), Errors, Patent Applications, Phased Arrays, Pistons, Wave Fronts
Scientific paper
A method and apparatus are disclosed for edge phasing an array of segments in a segmented primary telescope mirror using white light from a far field source and starting with the inner edge of each segment in the first ring of segments. The segments are individually phased for zero piston and tilt error with respect to the edge of a reference surface in the open center position of the telescope mirror, and proceeding from ring to ring by edge phasing one edge of each segment in each subsequent ring with an edge phased. After edge phasing of all segments in the telescope mirror array has been completed, full surface phasing can be achieved by using a conventional Shack-Hartmann technique followed by finding the RMS best fit for each segment of the mirror array.
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