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A low-orbit satellite communication method

A low-orbit satellite and satellite communication technology, which is applied in the field of satellite communication, can solve problems such as difficulty in ensuring full-orbit continuous connection, short direct communication time, and small coverage area, and achieve data transmission speed, rapid deployment, and high effectiveness. Effect

Active Publication Date: 2020-12-15
北京天链测控技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The orbit height of low-orbit satellites is 200-2000 kilometers, and the coverage area is small. The direct communication time between them and the ground is relatively short, basically within 10 minutes. It is difficult to ensure the continuous connection of the ground in the whole orbit. Therefore, a technology is urgently needed Enables low-orbit satellites to maintain communication with the ground at all times

Method used

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Embodiment 1

[0038] Embodiment 1: a kind of low-orbit satellite communication method of this embodiment, such as figure 1 shown, including the following steps:

[0039]The low-orbit satellite judges whether its current location is in an area that can directly communicate with the ground receiving station. If it is located in an area that can directly communicate with the ground receiving station, the low-orbit satellite directly communicates with the ground receiving station. In the area where the receiving station communicates directly, the low-orbit satellite selects a high-orbit satellite that can communicate directly with itself and the ground receiving station as a transfer station, and establishes communication with the high-orbit satellite as the transfer station's high-orbit satellite. The satellite relays communication data between the low-orbit satellite and the receiving station on the ground.

[0040] The method for determining the area where a low-orbit satellite can communic...

Embodiment 2

[0053] Embodiment 2: a kind of low orbit satellite communication method of the present embodiment, comprises the following steps:

[0054] The low-orbit satellite judges whether its current location is in an area that can directly communicate with the ground receiving station. If it is located in an area that can directly communicate with the ground receiving station, the low-orbit satellite directly communicates with the ground receiving station. In the area where the receiving station communicates directly, the low-orbit satellite selects a high-orbit satellite that can communicate directly with itself and the ground receiving station as a transfer station, and establishes communication with the high-orbit satellite as the transfer station's high-orbit satellite. The satellite relays communication data between the low-orbit satellite and the receiving station on the ground.

[0055] The method for determining the area where a low-orbit satellite can communicate directly with...

Embodiment 3

[0066] Embodiment 3: a kind of low orbit satellite communication method of the present embodiment, comprises the following steps:

[0067] The low-orbit satellite judges whether its current location is in an area that can directly communicate with the ground receiving station. If it is located in an area that can directly communicate with the ground receiving station, the low-orbit satellite directly communicates with the ground receiving station. In the area where the receiving station communicates directly, the low-orbit satellite selects a high-orbit satellite that can communicate directly with itself and the ground receiving station as a transfer station, and establishes communication with the high-orbit satellite as the transfer station's high-orbit satellite. The satellite relays the communication data between the low-orbit satellite and the ground receiving station;

[0068] The high-orbit satellite divides the area it covers into several sub-regions, and selects one or...

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Abstract

The invention discloses a low-orbit satellite communication method. It includes the following steps: the LEO satellite determines whether its current position is in an area capable of direct communication with a ground receiving station, if located in an area capable of direct communication with a ground receiving station, the LEO satellite communicates directly with the ground receiving station,if located in an area that is not capable of direct communication with a ground receiving station, the LEO satellite chooses a high-orbit satellite which can communicate directly with both itself andthe ground receiving station as a relay station, and establishes communication with the high-orbit satellite, and the high-orbit satellite which serves as the relay station relays the communication data between the low-orbit satellite and the ground receiving station. The invention can ensure that the whole orbit of the low-orbit satellite and the ground receiving station always keep communication, and realize the seamless coverage of the low-orbit satellite.

Description

technical field [0001] The invention relates to the technical field of satellite communication, in particular to a low-orbit satellite communication method. Background technique [0002] The orbit height of low-orbit satellites is 200-2000 kilometers, and the coverage area is small. The direct communication time between them and the ground is relatively short, basically within 10 minutes. It is difficult to ensure the continuous connection of the ground in the whole orbit. Therefore, a technology is urgently needed It can make the low-orbit satellite and the ground maintain communication all the time. Contents of the invention [0003] In order to solve the above technical problems, the present invention provides a low-orbit satellite communication method, which can ensure that the whole orbit of the low-orbit satellite and the ground receiving station maintain communication all the time, and realize seamless coverage of the low-orbit satellite. [0004] In order to solve...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/185H04W16/18H04W40/22H04W84/06
CPCH04B7/18515H04B7/18517H04B7/18584H04B7/18589H04W16/18H04W40/22H04W84/06
Inventor 刘颖郑汝花杨毅强
Owner 北京天链测控技术有限公司
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