Open AccessLight deflection Phenomenon Simulation and Calibration of the Earth-Observation Satellite
Author(s) -
Jing Yu,
Deyin Liang,
Hongtao Gao,
Longjiang Yu,
Yufei Huang
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/783/1/012140
Subject(s) - deflection (physics) , remote sensing , satellite , optics , emulation , geodesy , physics , computer science , geology , astronomy , economic growth , economics
The advance of the resolution of optical observation satellite requires more accurate image acquisition location and geometrical model, therefore, light deflection effect must be taken into account in the geometrical model. The deflection of light is a phenomenon of a deviation between the apparent position and the true position of the observed object, due to the relative velocity of the observer (the remote sensing satellite). This article firstly models the light deflection effect of the earth-observation process of satellite, using this model, the deviation of the “apparent” location and the “real” location of the ground target is calculated. Then the influence of the satellite observation pointing angle to light deflection effect is analyzed. In the end, the correction method of the light deflection effect is advised, and through emulation, we can see that the image acquisition location error can be greatly improved after the correction.