A technology for ultra-wide circular scanning imaging by an optical satellite is provided. Calculating an angle θ1 between the outermost field of view of an area array camera (2) and an earth-pointed axis (q) of a satellite (1) according to the width W required for ground imaging coverage in a direction perpendicular to the flight direction (b) of the satellite (1) and according to the height h of the orbit of the satellite (1); installing the area array camera (2) on a side surface of the satellite (1) according to the angle θ1; calculating the maximum rotation angle ωmax allowed by the satellite (1) according to the minimum exposure time T of a detector of the satellite (1) and the worst ground pixel resolution r of the satellite (1); selecting a rotation speed ω of the satellite (1) that is less than ωmax, and setting the rotation speed ω to be the rotation speed relative to the ground.
Method and apparatus for ultra-wide circular scanning imaging by optical satellite
2021-05-25
Patent
Electronic Resource
English
IPC: | G01C Messen von Entfernungen, Höhen, Neigungen oder Richtungen , MEASURING DISTANCES, LEVELS OR BEARINGS / B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT / G03B APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM , Geräte oder Anordnungen zum Aufnehmen, Projizieren oder Betrachten von Fotografien |
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