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Large-view-field X-ray navigation sensor based on lobster eyes

An X-ray and sensor technology, applied in the field of X-ray navigation sensors with a large field of view, can solve problems such as a small field of view for navigation, improve safety and reliability, facilitate long-term high-precision autonomous navigation, and reduce dependence and cost effects

Inactive Publication Date: 2015-06-10
SHANGHAI XINYUE METER FACTORY
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Problems solved by technology

[0003] The purpose of the present invention is to provide a large field of view X-ray navigation sensor based on lobster eyes, which is suitable for long-term high-precision spacecraft autonomous navigation in deep space and large field of view, to solve the problem of small traditional Wolter-type X-ray navigation field of view Disadvantages, realize independent control of the spacecraft's time, orbit, and attitude

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  • Large-view-field X-ray navigation sensor based on lobster eyes
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  • Large-view-field X-ray navigation sensor based on lobster eyes

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Embodiment Construction

[0023] The present invention proposes a large field of view navigation scheme based on the lobster eye, which uses the lobster eye optical system to receive the radiation information of the pulsar to realize the autonomous navigation of the satellite. The principle of the lobster eye optical system involved in the scheme, the pulse time conversion Model, and lobster eye X-ray navigation sensor.

[0024] (1) Principle of lobster eye optical system

[0025] There are two main types of incident X-ray light sources: one is a point light source, which is idealized as a particle and emits light in all directions; the other is a parallel light source, which refers to a light source whose beam radiates far away but does not increase significantly in width. Light sources such as lasers and the sun.

[0026] The pulsar navigation adopted by the autonomous navigation scheme of the present invention can be approximated as parallel light incident because the pulsar is very far away from t...

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Abstract

The invention relates to a large-view-field X-ray navigation sensor based on lobster eyes. The sensor comprises a lobster eye optical system which reflects X-rays incident from a pulsar in a grazing mode and gathers photons of the X-rays to the sphere surface or hemisphere surface with the radius of R / 2, and a sphere surface detector is arranged at the position to detect the photons of the X-rays and measuring arrival time of the photons; an electronics system carries out time accumulation on the photons of the X-rays to form a pulse outline, and compares the pulse outline with a standard pulsar database to obtain target characteristic information of the pulsar for data processing and solving so that navigation information can be obtained. The sensor overcomes the defect that a traditional Wolter type X-ray navigation view field is small, the requirement for long-time, large-view-field and high-precision autonomous navigation is met, and rich navigation information about time, positions, speed and the like can be provided for spacecrafts in near-earth orbits, deep space and interstellar space.

Description

technical field [0001] The invention relates to a large field of view X-ray navigation sensor based on lobster eyes, which belongs to the field of navigation guidance control, especially the field of deep space autonomous navigation. Background technique [0002] With the development of science and technology and human exploration of the universe, the current navigation methods available for deep space probes are mainly ground radio navigation, supplemented by optical autonomous navigation. Ground radio navigation capabilities are limited by the distribution of measurement and control stations, Device to ground distance, etc. The existing GPS and optical navigation ground test system technology cannot meet the needs of spacecraft deep space long-term autonomous navigation. X-ray pulsar navigation can provide a good time and frequency source, strong autonomy, good anti-interference, and its navigation coverage The range is wide, which provides a new idea and feasible way for...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C21/24
CPCG01C21/24
Inventor 谭天乐苏枫程华奇龙华保杨光刘宇
Owner SHANGHAI XINYUE METER FACTORY
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