A centralized online planning method for satellite observation network

A satellite observation, centralized technology, applied in the field of satellite astronomical observation

Active Publication Date: 2022-04-08
NAT SPACE SCI CENT CAS
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Problems solved by technology

This matching requirement between the orbital plane and the observation direction makes each satellite only used to observe targets in a very limited area

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  • A centralized online planning method for satellite observation network
  • A centralized online planning method for satellite observation network
  • A centralized online planning method for satellite observation network

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Embodiment Construction

[0069] The technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0070] The present invention proposes a centralized online planning method for a satellite observation network, and the technical scheme is as follows:

[0071] The method of the present invention is based on the large-scale satellite observation network that provides continuous observation for opportunistic observation events, and conducts research on the multi-satellite collaborative observation online planning method for unknown tasks; firstly, according to the specific application requirements of the problem, an unknown task-oriented An optimization model for the online planning problem of multi-satellite cooperative observation. Then, the calculation method of the observability of satellites to astronomical targets is studied in detail; in order to solve the problem that the optimization objective function in the above planning model ca...

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Abstract

The invention discloses a centralized online planning method for a satellite observation network. The method includes: step 1) when the satellite observation network does not observe the target, use the celestial coverage of the satellite observation network; calculate the initial optimization objective function Numerical value; step 2) using the initial optimized objective function value to construct an alternative observation plan set; step 3) calculating the time coverage of each satellite in the current available satellite set to the current target; for the satellites in the currently available satellite set according to Arrange in descending order of time coverage; step 4) according to the sorting results, carry out binary tree pruning optimization to the satellites in the current available satellite collection, calculate the time coverage of each candidate satellite combination and the optimization objective function value of the comprehensive observation performance index; comprehensive observation The performance index comprehensively considers the time coverage and the celestial sphere coverage; step 5) select the satellite combination with the largest value of the optimized objective function as the satellite to perform the observation task of the target.

Description

technical field [0001] The invention relates to the field of satellite astronomical observation, in particular to a centralized online planning method for a satellite observation network. Background technique [0002] The CATCH program is a micro-satellite astronomical observation constellation program proposed by the Institute of High Energy Physics, Chinese Academy of Sciences. It was supported by the Space Science Strategic Pilot Science and Technology Project in 2019. With the support of the Chinese Academy of Sciences Space Science Strategic Pioneer Science and Technology Project, the program has completed mission concept research. The CATCH program is aimed at the field of space astronomy in 2030, and its core scientific goal is to simultaneously track and observe a large number of variable-source celestial objects. By around 2030, with the operation of a series of multi-band survey telescopes, tens of thousands of variable-source celestial objects will be detected ev...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q10/04G06Q10/06G06N5/00
CPCG06Q10/04G06Q10/0631G06N5/00
Inventor 李大林彭晓东
Owner NAT SPACE SCI CENT CAS
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