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Method for evalutating strength of photogrammetry network based on attenuation factor
Author(s): Bolun Zhang
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Paper Abstract

Based on photogrammetry, antenna deformation measurement in vacuum and cryogenic environment has been widely carried out. The strength of measuring network will affect the accuracy, repeatability and stability of the measured results. A method for evaluating the strength of photogrammetric network based on attenuation factor is proposed, that is, a strong correlation is established between the measurement accuracy and spatial network parameters through the formula of attenuation factor of network strength ,according to the factor value, the network layout can be evaluated . In this paper, the reliability of this method is verified by experiments. The method can obtain a better network design before measurement and avoid a lot of repetitive work. The evaluation method is applied to deformation measurement test for large aperture antenna in the vacuum and cryogenic environment .Thus reduces the test cost and the risk, enhances the measurement accuracy and the stability.

Paper Details

Date Published: 18 November 2019
PDF: 9 pages
Proc. SPIE 11189, Optical Metrology and Inspection for Industrial Applications VI, 1118918 (18 November 2019); doi: 10.1117/12.2535815
Show Author Affiliations
Bolun Zhang, China Academy of Space Technology (China)


Published in SPIE Proceedings Vol. 11189:
Optical Metrology and Inspection for Industrial Applications VI
Sen Han; Toru Yoshizawa; Song Zhang; Benyong Chen, Editor(s)

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