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Embedded space target astronomical positioning method

A space target, astronomical positioning technology, applied in astronomical navigation, character and pattern recognition, structured data retrieval, etc., can solve the problems of low efficiency, long time-consuming space target monitoring, complex data processing process, etc., to reduce bandwidth requirements. Effect

Active Publication Date: 2020-02-28
ZIJINSHAN ASTRONOMICAL OBSERVATORY CHINESE ACAD OF SCI
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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide an embedded space target astronomical positioning method to solve the problems of long time-consuming, low efficiency and complicated data processing process in the monitoring of space targets in the prior art

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  • Embedded space target astronomical positioning method

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Embodiment Construction

[0034] The technical solutions of the present invention will be clearly and completely described below through specific embodiments.

[0035] The present invention provides an embedded space target astronomical positioning method, the specific process of which is as follows figure 1 As shown, it specifically includes the following steps:

[0036] (1) Initialize the star catalog data and star catalog index data. The initialized star catalog includes standard stars that have been accurately measured in practice, that is, theoretical stars. The position and photometric information of the theoretical stars are used as standard values ​​in astronomical measurements; according to The telescope used for actual observation sets the focal length and field of view and the size of the camera target surface and the pixel size, wherein the star catalog used by the astronomical positioning method of the present invention is the GAIA star catalog.

[0037](2) Use a telescope to observe, and...

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Abstract

The invention relates to an embedded space target astronomical positioning method. The method comprises the following steps: (1) initializing star catalogue data and star catalogue index data, and setting a focal length, a view field, a camera target surface size and a pixel size according to a telescope used for actual observation; (2) observing by using a telescope, processing an observed image,and reading image processing data into a core processor; (3) carrying out accurate center pointing and image rotation measurement on an actually measured fixed star image by utilizing actually measured astronomical image data; (4) searching N2 theoretical fixed stars in the field of view again by accurate center pointing; and (5) carrying out astronomical positioning and photometry calculation ofthe space target, so as to complete astronomical positioning of the space target. According to the invention, a negative film model is used to calculate the image coordinates and gray scale information of the space target observed in the image so as to obtain the actual astronomical position and luminosity information of the space target, and the bandwidth requirement for data transmission is lowered.

Description

technical field [0001] The invention relates to the technical field of positioning, in particular to an embedded space object astronomical positioning method. Background technique [0002] The development of aerospace technology has enabled human beings to look down on the earth from outside the atmosphere and explore the vast space of the universe. It has been more than 60 years since the first artificial earth satellite was put into space in 1957. During this period, space science and technology have achieved rapid development and great achievements. But with space launch activities time and time again, a large amount of space debris is left in the earth orbit space. The current monitoring capability can only record the orbits of a small number of dangerous debris, and it is not yet possible to accurately measure the orbit information of most dangerous debris and all small space debris. Debris and dangerous debris are the focus of attention in the design of spacecraft pr...

Claims

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Application Information

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IPC IPC(8): G01C21/02G06F16/29G06K9/62
CPCG01C21/025G06F16/29G06F18/22
Inventor 门金瑞张晓祥黄星旻
Owner ZIJINSHAN ASTRONOMICAL OBSERVATORY CHINESE ACAD OF SCI
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