On-orbit visual principle point monitoring system of three-line array camera

Yong Lv; Qibo Feng; Lishuang Liu; Qingshan Chen

doi:10.1117/12.837802

20 November 2009 On-orbit visual principle point monitoring system of three-line array camera

Yong Lv, Qibo Feng, Lishuang Liu, Qingshan Chen

Proceedings Volume 7511, 2009 International Conference on Optical Instruments and Technology: Optoelectronic Measurement Technology and Systems; 75111B (2009) https://doi.org/10.1117/12.837802
Event: International Conference on Optical Instrumentation and Technology, 2009, Shanghai, China

Abstract

Visual principle point is a key photogrammetry parameter while the position change of it can only indirectly be estimated by the inverse calculation of the ground control point presently. To get the exact position change of the visual principle point an on-orbit monitoring system of three-line array camera is proposed. The system is composed of light source part and photoelectric detecting part that move along with the lens and the line array CCD respectively. The position change of the visual principle point can be derived by the position change of the two light spots. This system will not change the structure of the camera and influence the function of it. Experimental system is built up and ground test results prove the feasibility of the monitoring system and show the accuracy of it is better than 1^μm.

Citation Download Citation

Yong Lv, Qibo Feng, Lishuang Liu, and Qingshan Chen "On-orbit visual principle point monitoring system of three-line array camera", Proc. SPIE 7511, 2009 International Conference on Optical Instruments and Technology: Optoelectronic Measurement Technology and Systems, 75111B (20 November 2009); https://doi.org/10.1117/12.837802

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