Dr. Yinghui Hu Profile

Dr. Yinghui Hu

at Harbin Institute of Technology

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Proceedings Article | 15 October 2015 Paper

Linear CCD attitude measurement system based on the identification of the auxiliary array CCD

Yinghui Hu, Feng Yuan, Kai Li, Yan Wang

Proceedings Volume 9671, 967103 (2015) https://doi.org/10.1117/12.2196940

KEYWORDS: Charge-coupled devices, CCD cameras, Imaging systems, Light emitting diodes, Cameras, Complex systems, Calibration, Lithium, Blue light emitting diodes, Optical filters

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Object to the high precision flying target attitude measurement issues of a large space and large field of view, comparing existing measurement methods, the idea is proposed of using two array CCD to assist in identifying the three linear CCD with multi-cooperative target attitude measurement system, and to address the existing nonlinear system errors and calibration parameters and more problems with nine linear CCD spectroscopic test system of too complicated constraints among camera position caused by excessive. The mathematical model of binocular vision and three linear CCD test system are established, co-spot composition triangle utilize three red LED position light, three points’ coordinates are given in advance by Cooperate Measuring Machine, the red LED in the composition of the three sides of a triangle adds three blue LED light points as an auxiliary, so that array CCD is easier to identify three red LED light points, and linear CCD camera is installed of a red filter to filter out the blue LED light points while reducing stray light. Using array CCD to measure the spot, identifying and calculating the spatial coordinates solutions of red LED light points, while utilizing linear CCD to measure three red LED spot for solving linear CCD test system, which can be drawn from 27 solution. Measured with array CCD coordinates auxiliary linear CCD has achieved spot identification, and has solved the difficult problems of multi-objective linear CCD identification. Unique combination of linear CCD imaging features, linear CCD special cylindrical lens system is developed using telecentric optical design, the energy center of the spot position in the depth range of convergence in the direction is perpendicular to the optical axis of the small changes ensuring highprecision image quality, and the entire test system improves spatial object attitude measurement speed and precision.

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