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A method for autonomously acquiring and sending camera gain series on a star

A camera gain and autonomous transmission technology, applied in the field of aerospace, can solve the problems of unreasonable dynamic range of satellite images, inflexible setting of on-orbit imaging parameters, and underutilization of image dynamic range, etc. The effect of upscaling tasks, increasing flexibility and automation

Active Publication Date: 2017-08-29
AEROSPACE DONGFANGHONG SATELLITE
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Problems solved by technology

[0002] At present, the working parameters (integration series and gain) of each imaging of domestic small satellite optical remote sensing satellites need to be realized through frequent ground injection tasks, and only a set of imaging parameters can be used to bring the dynamic range of images for tasks that last several minutes Underutilized defects, in-orbit imaging parameter settings are not flexible enough and the degree of automation is low, the dynamic range of satellite images is not reasonable enough, and the radiation quality of images is not high enough

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  • A method for autonomously acquiring and sending camera gain series on a star
  • A method for autonomously acquiring and sending camera gain series on a star
  • A method for autonomously acquiring and sending camera gain series on a star

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Embodiment Construction

[0023] The present invention proposes that the computer of the Star Service Center independently acquires and sends the design method of the camera gain series mainly including the following aspects:

[0024] Firstly, the camera gain series table should be established, and according to different sun altitude angles, the camera gain series corresponding to the best working state of the camera under the sun altitude angle. The above-mentioned camera gain series table is as follows image 3 shown.

[0025] The ground will upload the completed camera gain series table to the computer of the Star Service Center through remote control. When the computer of the star service center receives the camera gain series table, it stores the content of the camera gain series table in three positions in the on-board format. When the ground needs the Starwork Center computer to telemeter the camera gain series content stored on the star to the ground, the Starwork Center computer first perfor...

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Abstract

The present invention provides a method for automatically acquiring and sending a camera gain stage number on a satellite. A satellite central computer sends a correct camera gain stage number to a camera sub-system by automatically calculating the camera gain stage number, so that frequent task uploading of the ground is reduced, and the defect of not making full use of an image dynamic range caused by the condition that a task for a few minutes only uses one set of imaging parameters is overcome. A satellite host automatically calculates the camera gain stage number, so that after a satellite goes to an orbit, a camera of a satellite system can be rapidly adjusted to a focal plane location, in-orbit test time is shortened, and the task is executed as soon as possible.

Description

technical field [0001] The invention belongs to the field of aerospace, and relates to a method for autonomously acquiring and sending camera gain series on a star. Improve the flexibility and automation of on-orbit imaging parameter settings for optical remote sensing satellites, reduce the complexity of satellite on-orbit operations, make the dynamic range of satellite images more reasonable, and improve the radiation quality of images. Background technique [0002] At present, the working parameters (integration series and gain) of each imaging of domestic small satellite optical remote sensing satellites need to be realized through frequent ground injection tasks, and only a set of imaging parameters can be used to bring the dynamic range of images for tasks that last several minutes Defects that are not fully utilized, in-orbit imaging parameter settings are not flexible enough and the degree of automation is low, the dynamic range of satellite images is not reasonable ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F19/00H04N5/232
Inventor 宋智李志刚李志壮李军予李琳琳
Owner AEROSPACE DONGFANGHONG SATELLITE
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