Photogrammetric measurement of the ASKAP antenna

Qi-qiang Feng; Zong-chun Li; Guang-yun Li

doi:10.1117/12.866765

20 August 2010 Photogrammetric measurement of the ASKAP antenna

Qi-qiang Feng, Zong-chun Li, Guang-yun Li

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.

Citation Download Citation

Qi-qiang Feng, Zong-chun Li, and 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); https://doi.org/10.1117/12.866765

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