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Analysis method suitable for positioning accuracy of spatial X-ray source

An accuracy analysis and X-ray technology, applied in the field of positioning accuracy analysis of space X-ray sources, can solve the problems of increasing the difficulty and cost of satellites, and achieve the effect of low demand for satellite systems, high-precision positioning, and high positioning accuracy

Active Publication Date: 2019-04-26
BEIJING INST OF SPACECRAFT SYST ENG
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Problems solved by technology

[0007] In terms of satellite platform technology, it is expected to improve the positioning accuracy of satellites for X-ray sources by increasing the requirements for satellite pointing accuracy, stability, and satellite structure stability, which will greatly increase the difficulty and cost of satellites.

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  • Analysis method suitable for positioning accuracy of spatial X-ray source

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Embodiment Construction

[0031] In view of the deficiencies of existing technologies, this method proposes a positioning accuracy analysis method for X-ray sources in space, starting from the imaging capability of my country's first X-ray astronomical exploration satellite built by the direct modulation and demodulation method established by Chinese scholars, and gives the impact The factors of cosmic X-ray source positioning accuracy, and the nature and error of the influencing factors are distributed, forming the cosmic X-ray source positioning accuracy error system. Aiming at the error nature of the error system and the imaging method of the X-ray telescope, an analysis method for determining the joint positioning accuracy of multiple telescopes is proposed.

[0032] This method utilizes the characteristics of space X-ray detection satellite inertial space target pointing and non-position-sensitive collimation telescope direct demodulation imaging method, and hard X-ray modulation telescope satellite...

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Abstract

Disclosed is an analysis method suitable for positioning accuracy of a spatial X-ray source. Firstly, influence factors of a satellite on the positioning accuracy of the cosmetic X-ray source is obtained through decomposition and divided into random errors and systematic errors, then the positioning accuracy of a high-energy telescope detector, a medium-energy telescope detector and a low-energy telescope detector for the unknown X-ray source is calculated according to the systematic errors, and finally, the positioning accuracy of the unknown X-ray source is determined.

Description

technical field [0001] The present invention designs a method for analyzing the location accuracy of X-ray sources in space, which is suitable for analyzing the location accuracy of unknown X-ray sources by space vehicles using collimator-type X-ray telescopes, and is especially suitable for multi-band joint observation of X-ray sources. Analysis of positioning accuracy of X-ray sources in unknown space by ray astronomical observation satellites. Background technique [0002] Space X-rays originate from high-energy physical processes on celestial bodies and are related to extreme physical conditions such as high temperature, high density, strong magnetic field, and strong gravitational field. They are the main means to study the properties of celestial bodies such as black holes and neutron stars. The Earth's atmosphere absorbs X-rays, so X-ray observations of celestial objects can only be made above the atmosphere. The first black hole discovered by mankind, Cygnus X-1, wa...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V13/00
CPCG01V13/00
Inventor 张龙潘腾倪润立顾荃莹王颖卢方军梁中坚缪远明
Owner BEIJING INST OF SPACECRAFT SYST ENG
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