A geo, leo mixed constellation and its design method

A technology of constellation and satellite constellation, applied in the field of GEO, LEO hybrid constellation and its design, can solve the problems affecting the overall efficiency and cost of hybrid constellation

Active Publication Date: 2022-03-22
NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the LEO and GEO constellations still face issues such as how to improve link transmission efficiency, reduce link switching and the number of link terminals
these issues affect the overall efficiency and cost of this hybrid constellation

Method used

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  • A geo, leo mixed constellation and its design method
  • A geo, leo mixed constellation and its design method
  • A geo, leo mixed constellation and its design method

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Embodiment Construction

[0021] The technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0022] A GEO and LEO hybrid constellation, including a LEO satellite constellation and a GEO satellite constellation; the orbital inclination of the LEO satellite constellation is greater than 75°, the LEO satellite constellation includes a plurality of orbital planes distributed at equal intervals, and the LEO satellite constellation has multiple orbital planes in the same orbit The satellites are distributed at equal intervals; the GEO satellite constellation includes multiple satellites located in GEO orbit, GEO satellites and some LEO satellites are equipped with laser communication terminals, and the laser communication terminals are used to establish laser communication between GEO satellites and LEO satellites link; any orbital plane of the LEO satellite constellation has at least one LEO satellite capable of establish...

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Abstract

The invention discloses a GEO and LEO mixed constellation and a design method thereof, belonging to the technical field of satellite communication. The mixed constellation includes LEO satellite constellation and GEO satellite constellation; the orbital inclination of LEO satellite constellation is greater than 75°, the LEO satellite constellation includes multiple orbital planes distributed at equal intervals, and the LEO satellite constellation has multiple satellites equally spaced in the same orbit; GEO satellites The constellation includes multiple satellites in GEO orbit. GEO satellites and some LEO satellites are equipped with laser communication terminals; at any orbital plane of the LEO satellite constellation, at least one LEO satellite can establish a laser communication link with one GEO satellite at any time Any GEO satellite in the GEO satellite constellation can establish a laser communication link with at least one LEO satellite at any time. The invention can guarantee the continuous laser communication of GEO and LEO constellations, and guarantee the highest link utilization efficiency, the minimum link switching frequency and the minimum number of laser communication terminals.

Description

technical field [0001] The invention relates to a GEO and LEO mixed constellation and a design method thereof, belonging to the technical field of satellite communication. Background technique [0002] At present, LEO (Low Earth orbit) constellations at home and abroad mainly provide communication services with global seamless coverage. Due to political, security and other factors, it is difficult to deploy stations globally. However, the data of LEO satellites can be transmitted back by several satellites located in GEO (geostationary orbit, geostationary orbit), which can alleviate the impact of insufficient gateway stations to a certain extent. Through the establishment of inter-satellite links between GEO and LEO satellites, a mixed constellation of GEO and LEO can be formed. However, the LEO and GEO constellations still face issues such as how to improve link transmission efficiency, reduce link switching and the number of link terminals. These issues affect the over...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/185H04B10/118
CPCH04B10/118H04B7/185H04B7/18521
Inventor 杨春雨安绍毅卢山肖永伟王立民
Owner NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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