Mr. X. Chen Profile

X. Chen

at Beijing Institute of Space Mechanics & Electricity

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Proceedings Article | 12 April 2023 Paper

Development of on-board radiation calibration device for water color and water temperature scanner

H. Dong, M. Lian, J. Dong, X. Chen, Y. Li, T. Yang, M. Zhai, H. Wang, Y. Liu, S. Tang

Proceedings Volume 12565, 125650X (2023) https://doi.org/10.1117/12.2661744

KEYWORDS: Black bodies, Calibration, Temperature metrology, Body temperature, Emissivity, Cameras, Remote sensing, Scanners, Sensors, Vacuum

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Ocean remote sensing satellites have the advantages of long-distance, non-contact observation with large field of view, all-day, all-weather and real-time imaging, and have become an important means of global marine environment monitoring. The development of marine remote sensing in my country is going through a leap from "following" - "running side by side" - "leading". Quantitative application is the characteristic of marine satellite data application. In order to obtain the corresponding relationship between the input radiation and output of the remote sensing camera, and use it for quantitative inversion of the radiation information of the remote sensing target, the radiation calibration of the remote sensing camera is required. In this paper, starting from the high quantitative calibration index requirements of the new generation of ocean water color and water temperature scanner payload, a set of on-board radiation calibration device is designed and developed to realize the full spectrum, full aperture and full optical path high-precision calibration of the payload. The accuracy of the on-board radiation calibration device: the black body emissivity is 0.98, the measurement and temperature control accuracy is better than 0.05K, the temperature stability is better than 0.05K/30min, and the temperature uniformity is better than 0.2K.

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