Space astronomical telescope guiding image stabilization precision testing method and apparatus

A technology for astronomical telescopes and precision testing, which is applied in the directions of measuring devices, optical instrument testing, and machine/structural component testing, etc. It can solve problems such as accurate testing of space astronomical telescope image stabilization precision, and achieve the effect of improving accuracy

Active Publication Date: 2017-06-20
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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Problems solved by technology

[0004] Based on this, it is necessary to provide a space astronomical telescope guide star image stabilization accuracy test method and device for the problem that the image stabilization accuracy test method in the prior art cannot accurately test the image stabilization accuracy of the space astronomical telescope

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  • Space astronomical telescope guiding image stabilization precision testing method and apparatus
  • Space astronomical telescope guiding image stabilization precision testing method and apparatus
  • Space astronomical telescope guiding image stabilization precision testing method and apparatus

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Embodiment Construction

[0020] The technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0021] In one of the examples, as figure 1 As shown, a space astronomical telescope guide star image stabilization accuracy test method, including the following steps:

[0022] S100 obtains the current first star point dynamic target image formed on the first guide star after the first star point dynamic target generator is refracted by the main mirror of the space astronomical telescope whose object plane is infinite, and the second star point dynamic target generator passes through The current second star point dynamic target image formed on the second guide star after the main mirror of the space astronomical telescope is refracted, and the first star point dynamic target generator and the second star point dynamic target generator are in timing Synchronously, the first guide star and the second guide star are ...

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Abstract

The invention relates to a space astronomical telescope guiding image stabilization precision testing method and apparatus, belonging to the technical field of photoelectric test. The space astronomical telescope guiding image stabilization precision testing method and apparatus can simulate the input target for testing the space astronomical telescope guiding image stabilization precision. Under the condition of maintaining the space astronomical telescope and the guiding unmovable, the input target is changed, after the image stabilization mechanism completes the normal image stabilization, the position pixel change of the star point dynamic target is calculated according to the star point dynamic target image output by the space astronomical telescope, and the precision of the space astronomical telescope guiding image stabilization can be determined according to the position pixel change, and after the multitime image stabilization of the image stabilization mechanism, the position pixel changes of the star point dynamic target for multiple times can be compared, so that the accuracy of the guiding image stabilization precision testing result can be improved. A reference method and device is provided for the detection of a large-view-field space astronomical telescope system.

Description

technical field [0001] The invention relates to the technical field of photoelectric testing, in particular to a method and device for testing the precision of image stabilization of a guide star of a space astronomical telescope. Background technique [0002] A space astronomical telescope is a scientific device installed on a satellite platform to observe celestial objects. Because it is affected by the attitude change of the satellite platform and the micro-vibration produced by its own dynamic mechanism such as the attitude control engine and solar panels, it will As a result, the observation target deviates from the optical axis of the space astronomical telescope, resulting in a decrease in the imaging quality of the space astronomical telescope. Therefore, astronomical telescopes generally need to install multiple fine guide stars on the edge field of view of the optical system. Through the guide stars, the stars can be imaged in real time, and the position of the sta...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M11/00
CPCG01M11/00
Inventor 姬琪何煦张宁李成浩
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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