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Low-orbit Internet constellation satellite-ground link planning method based on constraint satisfaction

A satellite-to-ground link and constraint satisfaction technology, applied in the satellite field, can solve problems such as the inability to realize star-to-ground link planning for star-to-star networking

Active Publication Date: 2021-11-05
陕西星邑空间技术有限公司
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Problems solved by technology

[0007] The embodiment of the present disclosure provides a low-orbit Internet constellation satellite-ground link planning method based on constraint satisfaction, which can solve the problem in the prior art that the star-ground link planning cannot be realized after the constellation network

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  • Low-orbit Internet constellation satellite-ground link planning method based on constraint satisfaction
  • Low-orbit Internet constellation satellite-ground link planning method based on constraint satisfaction
  • Low-orbit Internet constellation satellite-ground link planning method based on constraint satisfaction

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Embodiment Construction

[0079] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present disclosure as recited in the appended claims.

[0080] The scenario in this example is as follows:

[0081] The satellite scene is formed by a network of 800 small satellites with an orbital altitude of 1200km, mainly providing Internet access services. The ground scene consists of 100 ground gateway stations, all of which are single-beam full-function measurement and control equipment. The 100 ground gateway stations are mainly d...

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Abstract

The invention provides a low-orbit internet constellation satellite-ground link planning method based on constraint satisfaction, and relates to the technical field of satellites, and the method comprises the steps: constructing a satellite-ground geometric visible model; constructing an inter-satellite distance visible model; constructing a satellite-ground link visible model according to the satellite-ground geometric visible model; acquiring measurement data between the target satellite and ground gateway station equipment according to the satellite-ground link visible model; determining constraint conditions; determining the validity of the measurement data according to the constraint condition, and establishing an effective measurement link matrix according to the validity of the measurement data; determining a satellite-ground networking planning principle; establishing a target satellite-ground link planning model according to a satellite-ground networking planning principle, constraint conditions and the effective measurement link matrix; and calculating the target satellite-ground link planning model to obtain a satellite-ground link resource scheduling result. According to the method, the planning constraint problems of neglecting constellation configuration, constellation orbit plane balanced use and the like during multi-task scheduling of a low-orbit constellation without an inter-satellite link are solved.

Description

technical field [0001] The present disclosure relates to the field of satellite technology, in particular to a method for planning a low-orbit Internet constellation satellite-ground link based on constraint satisfaction. Background technique [0002] Satellite constellation (referred to as "constellation") refers to a satellite system that is composed of multiple satellites, the satellite orbit forms a stable spatial geometric configuration, and the satellites maintain a fixed space-time relationship, and is used to complete specific space missions. The orbital altitude of a single satellite in the low-or-medium orbit constellation is kept within the range of 500km to 25,000km, and the main space missions it undertakes include: communication, navigation, and earth observation. Among them, the Internet constellation is a space system that realizes satellite Internet. Satellites are used as nodes of the Internet, and low-orbit constellations are used to transfer the Internet ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/185
CPCH04B7/18519Y02D30/70
Inventor 罗奇龙孙超
Owner 陕西星邑空间技术有限公司
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