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Earth-atmosphere light simulator and star sensor visible light measurement system

A star sensor and simulator technology, which is applied in the field of earth-atmospheric light simulator and star sensor visible light measurement system, can solve the problems that affect the star sensor attitude measurement, weak star light, etc., and achieve continuously adjustable luminance and luminescence Stable, low power consumption effect

Active Publication Date: 2017-04-12
BEIJING INST OF ENVIRONMENTAL FEATURES
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Problems solved by technology

However, the starlight of a star is very weak, making the gaseous light in space look like a huge bright disc to the star sensor, seriously affecting the attitude measurement of the star sensor

Method used

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  • Earth-atmosphere light simulator and star sensor visible light measurement system
  • Earth-atmosphere light simulator and star sensor visible light measurement system
  • Earth-atmosphere light simulator and star sensor visible light measurement system

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Embodiment Construction

[0030] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below with reference to the accompanying drawings and preferred embodiments. However, it should be noted that many of the details listed in the specification are only for readers to have a thorough understanding of one or more aspects of the present invention, and these aspects of the present invention can be implemented even without these specific details.

[0031] As used herein, terms such as "module" and "system" are intended to include computer-related entities such as, but not limited to, hardware, firmware, a combination of hardware and software, software, or software in execution. For example, a module may be, but is not limited to being limited to being, a process running on a processor, a processor, an object, an executable, a thread of execution, a program, and / or a computer. For example, both an applicatio...

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Abstract

The invention discloses an earth light simulator and a star sensor visible light measurement system. The earth light simulator comprises a visible light source system capable of emitting illuminance with 0-0.3 solar constants, wherein the light source system comprises a lamp array formed by a plurality of LED lamps, a plurality of parabolic reflectors, and a light homogenizing plate arranged above the lamp array and away a set distance from the lamp array; at least one LED lamp is arranged at the bottom of each parabolic reflector, the opening of each parabolic reflector faces the light homogenizing plate, so that limit emitted from the LED lamp is irradiated to the light homogenizing plate after diffuse reflection of the parabolic reflector; the light homogenizing plate is semi-circular, and the diameter of the semi circle is determined by the height of the rail of the star sensor to be detected. The star sensor on the ground can simulate the influence of the earth light on the star sensor before entering the sky, so that the basis for the design and the improvement of the star sensor can be provided.

Description

technical field [0001] The invention relates to the field of optoelectronic technology, in particular to a visible light measurement system of an earth-atmospheric light simulator and a star sensor. Background technique [0002] The star sensor is a high-precision space attitude measurement device that takes the stars as the reference system and the starry sky as the working object. Compared with other spacecraft attitude sensors, the star sensor has high precision and small drift, and can provide accurate space orientation for satellites, intercontinental strategic missiles, spacecraft and other aerospace vehicles. Since the opening angle of the star is very small, and the image of the star is taken in a vacuum, and the right ascension and declination of the star are known precisely when taking pictures, the attitude angle of the star sensor measured is very accurate. At present, star sensors have been widely used in various fields of aerospace technology such as earth rem...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C25/00G01C21/02
CPCG01C25/00
Inventor 郭青刘家国张进
Owner BEIJING INST OF ENVIRONMENTAL FEATURES
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