Rotation-based large-width optical imaging method

Abstract

The present invention provides an imaging method based on a rotation-based large and wide optical imaging system, comprising: step 1, configuring the angle between the boresight of the imaging camera and the satellite's axis to the earth to be greater than 0°, and the imaging camera rotates at a constant speed around the satellite's axis to the earth; step 2, the imaging camera is in The initial position, imaging once; the imaging camera rotates an angle, stabilizes and then images again, there is an overlapping area between the two imaging before and after; repeat the imaging camera rotates an angle to stabilize and then image; step 3, complete 360 ​​° rotation, imaging camera imaging once , to ensure that the imaging area coincides with the initial position; step 4, repeat steps 2 and 3 until the satellite leaves the observation area.

Description

technical field The invention relates to the technical field of optical remote sensing imaging, in particular to a large-width optical imaging method based on rotation. Background technique The development trend of optical remote sensing satellites is large width and high resolution. The existing satellite imaging system achieves the shooting width through the swing of the imaging camera, so the resolution and the width of the existing satellite imaging system are two indicators that are difficult to take into account. The cooperation of large-scale detectors greatly increases the difficulty of payload design, which is not conducive to the cost control and miniaturization of satellites. The main advantage of the solution proposed by the present invention is that it avoids the use of ultra-large-scale detectors and reduces the design difficulty of a camera with a large field of view. Contents of the invention The problem solved by the invention is that it is difficult fo...

AI Technical Summary

Problems solved by technology

The problem solved by the present invention is that the existing satellite imaging system is difficult to take into account both resolution and width. In order to solve the problem, the present invention provides a large-width optical imaging method based on rotation

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