Orbit maintaining method of ultra-low orbit satellite

A satellite and orbit technology, applied in the field of satellite communication, can solve the problem that ultra-low orbit satellites are difficult to maintain in orbit for a long time

Active Publication Date: 2021-09-10
BEIHANG UNIV +1
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  • Description
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  • Application Information

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Problems solved by technology

[0004] The technical problem solved by this application is: Aiming at the problem that ultra-low-orbit satellites in the prior art are difficult to maintain on orbit for a long time, this application provides an orbit-maintenance method for ultra-low-orbit satellites based on an air-breathing propulsion system. In the scheme provided, the ultra-low orbit atmosphere is used as the working medium of the propulsion system, a

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  • Orbit maintaining method of ultra-low orbit satellite
  • Orbit maintaining method of ultra-low orbit satellite

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Embodiment Construction

[0042] In the solutions provided by the embodiments of the present application, the described embodiments are only some of the embodiments of the present application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0043] Below in conjunction with accompanying drawing, the orbit maintenance method of a kind of ultra-low orbit satellite provided by the embodiment of the present application is described in further detail, and the specific implementation of the method may include the following steps (the method flow is as follows: figure 1 shown):

[0044]Step 101, setting satellite parameters and atmospheric parameters, constructing an orbit dynamics model according to the satellite parameters and the atmospheric parameters, wherein the satellite parameters include satellite orbit parameters, sat...

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Abstract

The invention discloses an orbit maintaining method for an ultra-low orbit satellite. The method comprises the steps: setting satellite parameters and atmospheric parameters, building an orbit dynamics model according to the satellite parameters and the atmospheric parameters, and enabling the satellite parameters to comprise satellite orbit parameters, satellite basic parameters and initial satellite orbit control parameters; an optimization model is constructed, the initial satellite orbit control parameters are optimized according to the optimization model, the orbit dynamics model, the satellite orbit parameters and the satellite basic parameters, optimized orbit control parameters are obtained, and the optimization model comprises a plurality of optimization constraint conditions; According to the optimized orbit control parameters, an air suction type propulsion system is controlled to collect air and exhaust the air, so that orbit maintenance of the ultra-low orbit satellite is realized. The technical problem that in the prior art, an ultra-low earth orbit satellite is difficult to maintain in orbit for a long time is solved.

Description

technical field [0001] The application belongs to the technical field of satellite communication, and relates to an orbit maintenance method of an ultra-low orbit satellite. Background technique [0002] Compared with traditional satellites, ultra-low orbit satellites have the advantages of short revisit period, high resolution of optical imaging reconnaissance, low power consumption of radar imaging reconnaissance load, and strong survivability. Broad application prospects. However, due to the high air concentration in the ultra-low orbit and the strong perturbation effect of atmospheric resistance, the orbit of the satellite decays rapidly, the life of the satellite is severely restricted, and it needs to carry a large amount of fuel for orbit maintenance, which makes the satellite not capable of being in orbit for a long time. ability to run. Therefore, atmospheric drag is a major technical problem hindering the orbit maintenance and wide application of ultra-low orbit ...

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Application Information

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IPC IPC(8): G06F30/15B64G1/24G06F119/14
CPCG06F30/15B64G1/242G06F2111/04G06F2113/08G06F2119/14
Inventor 徐明左小玉郑亚茹傅丹膺王晓耕于灵慧杨志何艳超白雪和星吉
Owner BEIHANG UNIV
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