REAL-TIME CELESTIAL POSITIONING AND METERING METHOD FOR SPACE DEBRIS BASED ON AUTOMATIC POINTING MEASUREMENT - PURPLE MOUNTAIN OBSERVATORY CHINESE ACAD OF SCIENCES

Title:

REAL-TIME CELESTIAL POSITIONING AND METERING METHOD FOR SPACE DEBRIS BASED ON AUTOMATIC POINTING MEASUREMENT

Document Type and Number:

WIPO Patent Application WO/2021/135161

Kind Code:

A1

Abstract:

A real-time celestial positioning and metering method for the space debris based on automatic pointing measurement. The method comprises: generating a theoretical star chart; obtaining the astrology of a star and the space debris; generating an actually detected star chart; matching the theoretical star chart and the actually detected star chart; measuring the pointing and image surface rotation; retrieving the star; preferably selecting a film model; calculating a metering model; and performing celestial positioning and metering of the space debris. The method can automatically preferably select the film model according to the observation field of view size, and automatically measure an image center pointing and image surface angle of rotation according to the time given on an image to automatically match the theoretical coordinate and the actually measured coordinate of the star, and automatically match the gray scale value of the star on the image and the theoretical magnitude of the star, thereby achieving real-time celestial positioning and metering of the space debris.

Inventors:

ZHANG XIAOXIANG (CN)
GAO XIN (CN)
LI XIYU (CN)

Application Number:

PCT/CN2020/102323

Publication Date:

July 08, 2021

Filing Date:

July 16, 2020

Export Citation:

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Assignee:

PURPLE MOUNTAIN OBSERVATORY CHINESE ACAD OF SCIENCES (CN)

International Classes:

G01C21/02; G01C25/00

Foreign References:

CN111156990A	2020-05-15
CN111156989A	2020-05-15
CN111156991A	2020-05-15
CN102506829A	2012-06-20
CN102374856A	2012-03-14
CN102506829A	2012-06-20
CN103925922A	2014-07-16
CN104331888A	2015-02-04
US7218384B2	2007-05-15

Other References:

SUN RONGYU, LU YAO;ZHAO CHANG-YIN: "A Method for Correcting Telescope Pointing Error in Optical Space Debris Surveys", ACTA ASTRONOMICA SINICA, vol. 56, no. 3, 1 May 2015 (2015-05-01), pages 253 - 263, XP055828229, ISSN: 0001-5245, DOI: 10.15940/j.cnki.0001-5245.2015.03.006

Attorney, Agent or Firm:

NANJING ZHONGSHAN PATENT AGENT CO., LTD. (CN)

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