Foundation visible high spectral resolution moon observation system

An observation system and hyperspectral technology, applied in the field of imaging spectroscopy and radiation calibration, can solve the problems of low spectral resolution and discontinuous observation spectrum, and achieve high spectral resolution and good spectral imaging quality

Active Publication Date: 2015-12-09
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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Problems solved by technology

[0004] In order to solve the problem of discontinuous observation spectrum and low spectral resolution existing in the existing ground-based lunar observation system using a filter type spectral imager, the present invention proposes a ground-based visible high-spectral resolution lunar observation system

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  • Foundation visible high spectral resolution moon observation system
  • Foundation visible high spectral resolution moon observation system
  • Foundation visible high spectral resolution moon observation system

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Embodiment Construction

[0025] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0026] The ground-based visible hyperspectral resolution lunar observation system of the present invention mainly includes a moon tracking imager and a visible hyperspectral imager.

[0027] Field of View FOV of the Moon Tracking Imager 2 Meet: 25≤FOV 2 ≤35, field of view FOV 2 Preferably 30; focal length f 2 Meet: 300mm≤f 3 ≤400mm; relative aperture D 2 / f 2 Satisfy: 1 / 5≤D 2 / f 2 ≤1 / 3. Preferably, the focal length f of the moon tracking imager 2 is 350mm, the entrance pupil diameter D of the lunar tracking imager 2 is 87.5mm, the relative aperture D of the lunar tracking imager 2 / f 2 is 1 / 4.

[0028] In this embodiment, the moon-tracking imager is a SkyRover imager from Yuzhong Optics Co., Ltd.

[0029] The working band of the visible hyperspectral imager is 400-1000nm; the field of view FOV 1 Satisfy: 1.2≤FOV 1 ≤1.5, field of view FOV 1 Pr...

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Abstract

The invention provides a foundation visible high spectral resolution moon observation system, and relates to the technical field of imaging spectrum and radiometric calibration, and can solve the problem that a foundation to moon observation system employing an existing optical filter type spectrum imager is discontinuous in spectral observation and is low in the spectral resolution. The system comprises a moon tracking imager and a visible high spectral imager which are identical in axis, wherein the visible high spectral imager comprises a telescope, an entrance slit in the focal plane of the telescope, a divided wave band attenuation optical filter, a plane turning mirror, an off-axis ellipsoid collimating mirror, a dispersion prism, an off-axis hyperboloid imaging mirror and an area array CCD detector; and the light intensity of beams which eject from the entrance slit is adjusted through the divided wave band attenuation optical filter, and the beams are turned back through the plane turning mirror and are collimated through the off-axis ellipsoid collimating mirror and are dispersed through the dispersion prism, and then the beams are imaged on the area array CCD detector according to different wavelength through focusing of the off-axis hyperboloid imaging mirror successively. The foundation visible high spectral resolution moon observation system is continuous in spectral observation, and is high in the spectral resolution and the spectral imaging quality.

Description

technical field [0001] The invention relates to the fields of imaging spectrum technology and radiation calibration technology, in particular to a ground-based visible high-spectrum resolution lunar observation system. Background technique [0002] Quantitative remote sensing is the key direction for the development of remote sensing fields such as atmosphere and ocean. The calibration of space remote sensors is the premise of the quantification of remote sensing information. The reliability of remote sensing data and the depth and breadth of applications depend to a large extent on the calibration accuracy of remote sensors. At the same time, the calibrated data does not depend on the data of the remote sensor, and its radiation value still maintains the physical information of the target structure and composition. If a natural star with known radiation properties is available, it is a very valuable calibration source. The moon is the only natural star that is included in...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01J3/28
Inventor 薛庆生王淑荣黄煜
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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