GEO and LEO mixed constellation and design method thereof

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: 2020-12-01
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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  • GEO and LEO mixed constellation and design method thereof
  • GEO and LEO mixed constellation and design method thereof
  • GEO and LEO mixed constellation and design method thereof

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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, and belongs to the technical field of satellite communication. The mixed constellation comprises an LEO satelliteconstellation and a GEO satellite constellation. The orbit inclination angle of the LEO satellite constellation is greater than 75 degrees, the LEO satellite constellation comprises a plurality of orbit surfaces which are distributed at equal intervals, and a plurality of satellites are distributed in the same orbit of the LEO satellite constellation at equal intervals. The GEO satellite constellation comprises a plurality of satellites located on a GEO orbit, and the GEO satellites and part of LEO satellites are provided with laser communication terminals. At least one LEO satellite in any orbit plane of the LEO satellite constellation can establish a laser communication link with one GEO satellite at any moment, and any GEO satellite in the GEO satellite constellation can establish a laser communication link with at least one LEO satellite at any moment. According to the invention, continuous laser communication of GEO and LEO constellations can be ensured, and the highest link useefficiency, the minimum link switching frequency and the minimum number of laser communication terminals are ensured.

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 Applications(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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