20 August 2010 Photogrammetric measurement of the ASKAP antenna
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Proceedings Volume 7820, International Conference on Image Processing and Pattern Recognition in Industrial Engineering; 782022 (2010) https://doi.org/10.1117/12.866765
Event: International Conference on Image Processing and Pattern Recognition in Industrial Engineering, 2010, Xi'an, China
Abstract
The Australian SKA Pathfinder ratio telescope (ASKAP) comprises an array of up to 45 dish antennas with diameter of 12 meters. ASKAP is situated at Australia's candidate site for the International Square Kilometre Array telescope in Western Australia. It is intended to be a fully-functional radio telescope, with a science case based on its wide-field-of-view capabilities at centimeter wavelengths. The paper reports the photogrammetric measurement of the first ASKAP antenna reflector surface. Deformation of the reflector surface was measured with photogrammetric system V-STARS at six different elevation and polarization angles. The maximum RMS of orthogonal distance residuals from the best-fit paraboloid is 0.58mm, less than the design accuracy of 1mm.
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Qi-qiang Feng, Qi-qiang Feng, Zong-chun Li, Zong-chun Li, Guang-yun Li, Guang-yun Li, } "Photogrammetric measurement of the ASKAP antenna", Proc. SPIE 7820, International Conference on Image Processing and Pattern Recognition in Industrial Engineering, 782022 (20 August 2010); doi: 10.1117/12.866765; https://doi.org/10.1117/12.866765
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