Structure variable mixed-orbit satellite constellation

A satellite constellation and satellite technology, applied in the field of satellite constellation system scheme design and constellation engineering construction, can solve the problems of limited system performance, single orbit, invariable structure, etc. Effect

Active Publication Date: 2017-05-31
CHINA ACADEMY OF SPACE TECHNOLOGY
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Problems solved by technology

[0004] At present, in the academic works and engineering practice published at home and abroad, the constellation design is often designed according to the specific needs. The constellation scheme is simple and limited, and its orbit is single, the structure is not variable, and the system performance is limited.

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  • Structure variable mixed-orbit satellite constellation
  • Structure variable mixed-orbit satellite constellation

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Embodiment Construction

[0020] The invention proposes a design scheme of a variable-configuration mixed-orbit satellite constellation. The constellation includes three orbit types: geostationary geostationary orbit (GEO), geosynchronous inclined orbit (IGSO) and medium altitude orbit (MEO), so it is called hybrid orbit for short. Since the configuration of the constellation is variable, it is a variable configuration constellation.

[0021] According to the type of orbit, the constellation can be divided into three sub-constellations: GEO, IGSO and MEO, such as figure 1 shown, where:

[0022] The GEO sub-constellation includes n (n ≥ 3) GEO satellites, which are distributed on n orbital positions in the geosynchronous geostationary orbit, and the coverage areas between adjacent satellites are connected, so that it can provide more than one layer of stability for the middle and low latitude regions of the northern and southern hemispheres. , Continuous coverage.

[0023] The IGSO sub-constellation ...

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Abstract

The invention discloses a structure variable mixed-orbit satellite constellation, comprising a GEO (Geosynchronous Orbit) sub constellation, an IGSO (Inclined Geo Stationary Earth Orbit) sub constellation and an MEO (Medium Earth Orbit) sub constellation. The GEO sub constellation comprises n GEO satellites distributed on n orbit positions of a geosynchronous orbit, and coverage areas between the adjacent satellites are connected and cover medium and low latitude areas in a full longitude manner. The IGSO sub constellation comprises five IGSO satellites, wherein the IGSO1, IGSO2 and IGSO3 satellites are located in the same orbit plane, and the phase difference between the adjacent satellites is 120 degrees; and simultaneously, the IGSO3, IGSO4 and IGSO5 satellites have the same ground track. The MEO sub constellation comprises m*k satellites distributed on k orbit planes, m satellites are on each orbit plane, and the MEO sub constellation has global coverage capability. When the structure of the constellation is reconstructed, the IGSO4 and IGSO5 satellites flexibly enter an HEO (High-altitude Earth Orbit) and run. The constellation has excellent global coverage capability, self management capability and flexible and variable structure.

Description

technical field [0001] The invention relates to a satellite constellation scheme, which is suitable for the scheme design of the satellite constellation system and the construction of the constellation project. Background technique [0002] Artificial satellites operate in space according to certain spatial distribution rules, forming satellite constellations, referred to as constellations for short. Constellation configuration refers to the distribution of satellites in the constellation, including satellite orbital distribution, orbital distribution, orbital type and characteristic parameters. Constellation configuration design is a key basic part of constellation system design. [0003] As an academic field, constellation design can be traced back to the 1960s. Constellation schemes emerge in endlessly, the most representative of which are communication constellations such as Inmarsat, Iridium, and Globalstar, as well as navigation constellations such as GPS, GLONASS, an...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/185H04W16/18H04W84/06
CPCH04B7/18502H04B7/1851H04W16/18H04W84/06
Inventor 邹恒光陈小燕周钠杨凌轩任军强张磊
Owner CHINA ACADEMY OF SPACE TECHNOLOGY
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