Low earth orbit satellite data transmission system

A data transmission system and low-orbit satellite technology, applied in the field of wireless communication, can solve the problems of high cost and low efficiency of low-orbit satellite data transmission technology, and achieve the effects of convenient miniaturization design, cost reduction, portability and mobility

Active Publication Date: 2017-06-13
SHANGHAI ENG CENT FOR MICROSATELLITES
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The problem solved by the present invention is that the existing low-orbit satellite data transmission technology has high cost and low efficiency; in order to solve the problem, the present invention provides a low-orbit satellite data transmission system

Method used

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  • Low earth orbit satellite data transmission system

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Embodiment Construction

[0012] Hereinafter, the spirit and essence of the present invention will be further elaborated in conjunction with the drawings and embodiments.

[0013] As mentioned in the background technology, in the prior art, large ground stations are used to receive data from low-orbit satellites, and the large ground stations can solve the problem of data reception; however, due to the complex structure, large volume, and poor mobility of the large ground stations, the cost is high , low efficiency; and the ground station needs to send a second time to the ground user terminal after receiving it; in addition, each acquisition of data needs to be planned in advance and resources must be arranged, and the acquired data has a certain delay; in order to solve the above problems, this The invention provides a low-orbit satellite transmission system and method.

[0014] Such as figure 1 As shown, the low-orbit satellite transmission system provided by the present invention includes: a low-o...

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Abstract

The invention discloses a low earth orbit satellite data transmission system, comprising a low earth orbit satellite transceiving end and a ground user terminal. The ground user terminal sends position information to the low earth orbit satellite transceiving end. A sending antenna of the low earth orbit satellite transceiving end points to the ground user terminal and sends service data.

Description

technical field [0001] The invention belongs to the field of wireless communication, in particular to a low-orbit satellite data transmission system. Background technique [0002] The low-orbit satellite data transmission system is one of the common systems for low-orbit satellites, which is mainly used for high-speed downloading of satellite payload data. Limited by the resource and energy constraints of low-orbit satellite platforms, in order to solve the problem of precise pointing of low-orbit satellite beams, satellite wide-beam transmission and large ground stations (generally using large antennas with a diameter of 6m) are used for high-gain tracking reception. , The construction cost of large ground stations is high, the number of available ones is small, and the mobility is poor, and the large ground stations need to perform secondary transmission after receiving data, which largely limits the wide application of satellites. Contents of the invention [0003] The...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/155H04B7/185H04W4/02H04W84/06
CPCH04B7/15507H04B7/18502H04B7/18517H04W4/025H04W84/06
Inventor 梁广王亚萍尹增山姜泉江黄康贺连星朱华赵笙罡姜兴龙彭宏涛潘超李一品王炳甲
Owner SHANGHAI ENG CENT FOR MICROSATELLITES
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