A Navigation Constellation Slowly Varying Inter-Satellite Link Planning Method Based on Ground Station Layout Constraints

An inter-satellite link and link planning technology, which is applied in the field of satellite-ground-inter-satellite link management, can solve problems such as unseen link planning methods, and achieve the effects of good application value, easy maintenance, and easy reconstruction

Inactive Publication Date: 2018-08-31
CHINA XIAN SATELLITE CONTROL CENT
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Problems solved by technology

Searching public literature shows that there is no link planning method for spacecraft measurement and control and navigation constellation inter-satellite link management

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  • A Navigation Constellation Slowly Varying Inter-Satellite Link Planning Method Based on Ground Station Layout Constraints
  • A Navigation Constellation Slowly Varying Inter-Satellite Link Planning Method Based on Ground Station Layout Constraints
  • A Navigation Constellation Slowly Varying Inter-Satellite Link Planning Method Based on Ground Station Layout Constraints

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Embodiment Construction

[0062] The present invention will be further described below in conjunction with the accompanying drawings and embodiments, and the present invention includes but not limited to the following embodiments.

[0063] The present invention adopts following technical scheme:

[0064] ① Construct the visible model of the satellite-ground link: According to the configuration and orbit elements of the mid-orbit constellation, the geometric layout and site coordinates of the ground measurement and control station, the J2000 earth inertial coordinate system is used to construct the visible model of the satellite-ground link.

[0065] ② Construct the visible model of the inter-satellite link: it includes three parts in total. First, construct the geometric visible model of the inter-satellite link according to the configuration of the mid-orbit constellation, the number of orbit elements, and the installation position of the inter-satellite antenna; second, According to the beam range of...

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Abstract

The present invention provides a navigation constellation slow-changing inter-satellite link planning method based on ground station layout constraints. First, the visible model of the satellite-ground link and the visible model of the inter-satellite link are constructed, and then the inter-satellite / ground visible time slot preprocessing is performed. After establishing the topology structure of the constellation, the constraint model of routing optimization and the optimization objective function are determined, and the routing table of the slowly variable inter-satellite link of the navigation constellation is obtained by solving the model. The invention solves the problem of managing the global navigation constellation through slowly variable inter-satellite links in the case of lack of ground measurement and control resources. The model is close to the needs of engineering and has good application value. It can be quickly established at the minimum cost when nodes change. new route.

Description

technical field [0001] The invention relates to the field of satellite-earth-inter-satellite link management of navigation constellations, in particular to a navigation constellation route optimization and maintenance method with slowly changing inter-satellite links. 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 function of the navigation constellation is to make full use of the space constraints formed by the constellation itself, and use appropriate measurement methods to realize the navigation and positioning of ground and space users. The navigation constellation is usually composed of medium earth orbit satellites operating at a height of about 20000km. [0003] With the expansion...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q10/06
Inventor 李晶耶刚强张天骄董卫华崔卫华张江赵国强安静斌余培军
Owner CHINA XIAN SATELLITE CONTROL CENT
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