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A method of communicating between a LEO satellite and a ground receiving station

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

Active Publication Date: 2018-12-28
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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  • A method of communicating between a LEO satellite and a ground receiving station
  • A method of communicating between a LEO satellite and a ground receiving station

Examples

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Embodiment 1

[0038] Embodiment 1: A kind of low-orbit satellite of this embodiment communicates with the method for ground receiving station, 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 whe...

Embodiment 2

[0053] Embodiment 2: a kind of low-orbit satellite of the present embodiment communicates with the method for ground receiving station, 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 sa...

Embodiment 3

[0066] Embodiment 3: a kind of low-orbit satellite of the present embodiment communicates with the method for ground receiving station, 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 se...

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Abstract

The invention discloses a communication method between a low-orbit satellite and a ground receiving station. It includes the following steps: the LEO satellite determines whether its current positionis 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 and the ground receiving station as a relay station, and establishes communication with the high-orbit satellite, and the high-orbit satellite which serves as therelay 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 method for communicating between a low-orbit satellite and a ground receiving station. 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-mentioned technical problems, the present invention provides a method for communication between a low-orbit satellite and a ground receiving station, which can ensure that the full orbit of the low-orbit satellite and the ground receiving station maintain communication ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/185
CPCH04B7/18519
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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