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Low-orbit microsatellite formation system suitable for medium/high-latitude region coverage

A micro-satellite, area coverage technology, applied in the field of satellite formation systems, can solve the problems of incompact satellite space distribution, unsuitable for ground area coverage, and no consideration of ISL construction, etc., to achieve easy configuration and optimization, enhanced applicability, and good symmetry. The effect of sex and compactness

Inactive Publication Date: 2013-01-23
三亚哈尔滨工程大学南海创新发展基地
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Problems solved by technology

However, this system composed of multiple Flower constellations is not suitable for ground area coverage due to the uniform and uncompact distribution of satellite space, and the construction of ISL is not considered in the design, so the system does not have good stability and inter-satellite coverage. Networking function

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  • Low-orbit microsatellite formation system suitable for medium/high-latitude region coverage
  • Low-orbit microsatellite formation system suitable for medium/high-latitude region coverage
  • Low-orbit microsatellite formation system suitable for medium/high-latitude region coverage

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Embodiment Construction

[0021] The present invention is described in more detail below in conjunction with accompanying drawing example:

[0022] to combine figure 1 . Each satellite in the satellite formation system of the present invention belongs to a 10-1-8 (N P -N d -N s )Flower constellation, the return period is 1 day, during which all satellites are in orbit for 10 laps.

[0023] The shape of each satellite orbit is consistent, and the basic parameters of the orbit are set as follows:

[0024] Orbital inclination i = 85.0°, using near-polar orbit;

[0025] perigee height h p =1500km;

[0026] The argument of perigee ω=270°, to ensure that the apogee is located in the northern hemisphere and the shape of the sub-satellite point trajectory is symmetrical about the central longitude;

[0027] Obtain the orbital semi-major axis a=9084km;

[0028] Orbit eccentricity e=0.13745.

[0029] The position of the satellite at the initial moment of a single orbital period is determined by its asc...

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Abstract

The invention provides a low-orbit microsatellite formation system suitable for medium / high-latitude region coverage. According to the low-orbit microsatellite formation system, a surface projection principle is designed based on Flower constellation, all satellites constitute a compact geometric space configuration at the initial moment of a regression period, and the topological structure is ensured to have a periodical repeat property relative to all points on the ground; highly elliptical orbits which are completely the same in shape are adopted for all the satellites in the formation; and a plurality of permanent inter-satellite links are established under the condition of guaranteeing no link overlap inside the formation. According to the low-orbit microsatellite formation system provided by the invention, the complexity of a ground tracking control system can be reduced greatly, the optimization of inter-satellite links and the increase of communication reliability are facilitated, a favorable ground multi-coverage characteristic of medium / high-latitude regions is guaranteed, and the low-orbit microsatellite formation system has wide application values and development prospects in the field of space communication.

Description

technical field [0001] The invention relates to a satellite formation system, in particular to a low-orbit micro-satellite formation system suitable for covering middle and high latitude areas. Background technique [0002] In recent years, the new generation of space wireless communication missions has put forward higher requirements for the throughput, real-time and robustness of the satellite formation system. The satellite system based on Walker δ constellation design theory is currently the most widely used satellite system with global coverage, and is used in the design of satellite navigation systems such as Globalstar in the United States, GLONASS in Russia, and Galileo in Europe. Although this type of system is still the mainstream of satellite system commercialization due to its good universality and commercial value, in terms of regional (especially in the middle and high latitude regions) coverage performance and the construction of a satellite network with the f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/185H04W84/06
Inventor 陈炳才李智楠杨晓冬
Owner 三亚哈尔滨工程大学南海创新发展基地
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