Space debris real-time astronomical positioning and photometry method based on automatic pointing measurement

A technology for astronomical positioning and space debris, which is applied in astronomical navigation, measurement devices, surveying and navigation, etc., and can solve the problems of low accuracy of telescope pointing error correction and influence of correction accuracy.

Active Publication Date: 2020-05-15
ZIJINSHAN ASTRONOMICAL OBSERVATORY CHINESE ACAD OF SCI
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Problems solved by technology

Even so, in the sky area with a low elevation angle, the correction accuracy of the telescope

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  • Space debris real-time astronomical positioning and photometry method based on automatic pointing measurement
  • Space debris real-time astronomical positioning and photometry method based on automatic pointing measurement
  • Space debris real-time astronomical positioning and photometry method based on automatic pointing measurement

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Embodiment Construction

[0065] In order to better understand the technical content of the present invention, specific embodiments are given together with the attached drawings for description as follows.

[0066] to combine figure 1 , the present invention refers to a real-time astronomical positioning and photometry method for space debris based on automatic pointing determination, the real-time astronomical positioning and photometry method comprising the following steps:

[0067] S1: Generate the astronomical positioning star library, and the first index data used to express the information of all the stars contained in the astronomical positioning star library; based on the astronomical positioning star library, generate the theoretical star map of the whole sky area, and use it for expression The second index data of the angular distance information between stars contained in the theoretical star map of the whole sky area.

[0068] S2: Receive at least one frame of images including space debris...

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Abstract

The invention discloses a space debris real-time astronomical positioning and photometry method based on automatic pointing measurement. The method comprises the steps of forming a theoretical star map; forming star images of fixed stars and space debris; generating an actual measurement star map; matching the theoretical star map with the actually measured star map; pointing and image plane rotation measurement; performing fixed star retrieval; optimizing a negative film model; calculating a photometric model; and performing astronomical positioning and photometry of space debris. According to the invention, the negative film model can be automatically optimized according to the observation view field; according to the given time on the image, the image center direction and the image plane rotation angle are automatically measured, automatic matching of fixed star theoretical coordinates and actually measured coordinates is achieved, automatic matching of fixed star gray values on theimage and theoretical stars of the fixed star gray values is achieved, and therefore real-time astronomical positioning and photometry of space debris are achieved.

Description

technical field [0001] The invention relates to the technical field of space debris positioning, in particular to a method for real-time astronomical positioning and photometry of space debris based on automatic pointing determination. Background technique [0002] In many fields such as scientific research and military affairs, it is necessary to monitor space debris. On the one hand, it measures the position and changes of space debris in the sky at each observation moment, and determines the orbit of space debris, so as to obtain accurate information about space debris. Based on this requirement, accurate measurement of space debris is a very important basic link. Without accurate measurement of space debris, space debris orbit identification, cataloging orbit determination, and precise orbit determination cannot be realized. [0003] There are two methods for accurately measuring the position of space debris: absolute positioning and relative positioning. Absolute positi...

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Application Information

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IPC IPC(8): G01C21/02
CPCG01C21/025
Inventor 张晓祥高昕李希宇
Owner ZIJINSHAN ASTRONOMICAL OBSERVATORY CHINESE ACAD OF SCI
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