Engineering Design Methodology of Navigation Satellite Constellation

A technology of engineering design and navigation satellite, which is applied in the field of engineering design of navigation satellite constellation to achieve the effect of improving compatibility and interoperability

Active Publication Date: 2018-09-21
PLA PEOPLES LIBERATION ARMY OF CHINA STRATEGIC SUPPORT FORCE AEROSPACE ENG UNIV
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Problems solved by technology

[0009] Aiming at the defects existing in the prior art, the present invention provides an engineering design method of a navigation satellite constellation. During the design process of the navigation satellite constellation, the selection of the initial ascending node right ascension, compatibility with other existing satellite navigation systems, and carrying Issues such as launch constraints, space orbit frequency applications, phased deployment of constellations, constellation backup, etc., the constellations thus designed have high performance

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  • Engineering Design Methodology of Navigation Satellite Constellation
  • Engineering Design Methodology of Navigation Satellite Constellation
  • Engineering Design Methodology of Navigation Satellite Constellation

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Embodiment Construction

[0083] The present invention is described in detail below in conjunction with accompanying drawing:

[0084] Such as figure 1 As shown, the present invention provides a kind of engineering design method of navigation satellite constellation, comprises the following steps:

[0085] Step 1: Determine the altitude of the satellite orbit;

[0086] The higher the orbital altitude of the satellite, the better the ground coverage performance, and at the same time it can avoid the influence of the Earth's radiation belt, but the increase in the orbital altitude will put forward higher requirements for the signal transmission power and the launch capability of the launch vehicle. Therefore, the choice of orbital height is a result of full balance.

[0087] This step is as follows figure 2 shown, including the following steps:

[0088] S1.1. Screen candidate orbits according to the influence of the space radiation environment, and obtain the first set of candidate orbits that meet ...

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Abstract

The invention provides an engineering design method for a navigation satellite constellation. The method comprises the following steps: determining the height of a satellite orbit; determining a tilt angle of the satellite orbit; determining the number of satellites; determining the number of orbit planes and a phase factor; determining initial right ascension of an ascending node; judging whether a user has a design demand of performing regional enhancement by adopting a GEO satellite or not, and if so, optimizing a station position of the GEO satellite; judging whether the user has a design demand of performing regional enhancement by adopting an IGSO satellite or not, and if so, optimizing a phase angle of the IGSO satellite, and determining an orbit plane of the IGSO satellite; establishing a constellation phased deployment policy; and establishing constellation backup policies including a constellation networking phase backup policy and a constellation operation phase backup policy. With the design method, the navigation constellation which meets user demands, is excellent in performance and small in satellite number, and has relatively good compatible interoperability with an existing GNSS can be designed.

Description

technical field [0001] The invention belongs to the technical field of navigation constellation optimization design, and in particular relates to an engineering design method of a navigation satellite constellation. Background technique [0002] Satellite navigation system can provide users with all-weather, continuous and accurate position, speed and time information on a global scale, which has huge military and economic benefits, and has attracted widespread attention from all over the world. The navigation constellations currently in orbit and providing services include: the GPS system of the United States, the GLONASS system of Russia and the Beidou satellite navigation system of China. The navigation constellations currently under construction include: the European Union's Galileo system, India's IRNSS regional navigation satellite system, and Japan's QZSS quasi-zenith satellite navigation system. [0003] How to reasonably design the constellation configuration is th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/50
Inventor 胡敏范丽王兆魁杨雪榕蒋超
Owner PLA PEOPLES LIBERATION ARMY OF CHINA STRATEGIC SUPPORT FORCE AEROSPACE ENG UNIV
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