Ground-based moon observation apparatus by using slit type imaging spectrometer

Abstract

The invention, which belongs to the foundation moon observation field, provides a ground-based moon observation apparatus by using a slit type imaging spectrometer. With the apparatus, problems that the structure of the existing ground-based moon observation device is complicated and the cost is high and a continuous moon spectral image with a high spectral resolution can not be obtained can be solved. The ground-based moon observation apparatus is composed of a two-dimensional tracking and positioning turntable, a slit type imaging spectrometer, a moon imaging instrument, and a computer control and acquisition system. The slit type imaging spectrometer and the moon imaging instrument are installed at the two-dimensional tracking and positioning turntable and are installed by sharing a same optical axis. The slit type imaging spectrometer and the moon imaging instrument are electrically connected with the computer control and acquisition system; and moon moving track simulation software is installed in the computer control and acquisition system. According to the invention, the structure is simple and the cost is low; and a continuous moon spectral image with a high spectral resolution can be obtained. Moreover, spectral radiance information detection is completed simultaneously and the observation efficiency and observation data qualities are effectively improved.

Description

technical field [0001] The invention belongs to the technical field of ground-based lunar observation, and in particular relates to a device for ground-based lunar observation by using a slit-type imaging spectrometer. Background technique [0002] One of the challenges of quantitative spatial remote sensing absolute measurement (the measured quantity can be directly read from the instrument) is to monitor the change of the instrument response for a long time, and comparing it with the standard source is a way to monitor the change. 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 the dynamic range of most imaging spectrometers in Earth orbit. It is called "solardiffuser" and is very stable. The surface of the moon has excellent radiation stability. Once the lunar spectral radiance is accurately determined With the relationship between phase angle and libration ang...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems of complex structure, high cost and inability to obtain continuous spectrum images of the moon with high spectral resolution existing in existing ground-based lunar observation devices, the present invention provides a device for ground-based lunar observation using a slit-type imaging spectrometer

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