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Chunxiao Zhang

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Proceedings Article | 5 November 2020 Paper

The analysis of cross-matching constraint mechanism based on the satellite joint observation

Xuan Chen, Wei Tan, Wenwen Qi, Chunxiao Zhang

Proceedings Volume 11567, 115671M (2020) https://doi.org/10.1117/12.2579444

KEYWORDS: Calibration, Satellites, Earth observing sensors, Landsat, Remote sensing, Sensors, Space operations, Space sensors, Sensor calibration

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Orbit prediction is the premise of consistency transfer calibration of space radiation standard. By using the satellite's orbital elements and the calibration sites information, the time and location of the two satellites are predicted with the joint observation constraints. The orbit prediction process of the consistency transfer calibration of space radiation standard is briefly introduced, and the satellite space position calculation method for orbit prediction is studied. By selecting TERRA and Landsat8 as the radiation reference satellites, GF-1, GF-2, GJ-1, etc. as the satellites to be calibrated and analyzing the constraints such as the observation time interval and the observation angle difference that limit the joint observation cross frequency, the analysis of the cross-matching constraint mechanism is done with the six calibration sites. The simulation and analysis results are helpful for the optimization design of the standard satellite orbit with the cross frequency of twice a month, and could provide technical support for the high-frequency and high-precision in-orbit radiometric calibration for Chinese satellites.

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