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Global satellite communication system and method

A satellite communication system and satellite technology, applied in the field of satellite communication, can solve problems such as no communication method design and difficult coverage in high-latitude areas, and achieve strong real-time communication capabilities, low operation and maintenance costs, and low maintenance costs

Active Publication Date: 2012-04-11
XIAN INSTITUE OF SPACE RADIO TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This solution is difficult to cover in high latitude areas, and only gives the constellation design, without the design of the communication method

Method used

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  • Global satellite communication system and method
  • Global satellite communication system and method
  • Global satellite communication system and method

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Embodiment Construction

[0028] The present invention will be further introduced below in conjunction with the accompanying drawings.

[0029] Such as figure 1 Shown is a schematic diagram of the system of the present invention. Including: a satellite constellation system composed of three medium-orbit satellites, three ground stations located in China and satellite user terminals.

[0030] Principle of invention

[0031] The invention utilizes the advantages of large coverage area and long overhead time of medium-orbit satellites in the satellite constellation system, adopts an inclined regressive circular orbit, and the satellite-to-ground coverage track has periodicity, so that the distribution of ground stations can be optimized and designed. Ground stations are mainly distributed in the west, south, and east of China. The selection of medium-orbit satellite orbit height parameters, inclination parameters, and ground station location parameters in the satellite constellation system satisfies th...

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Abstract

The invention discloses a global satellite communication system and method and belongs to the technical field of satellite communication. The system comprises a satellite constellation system consisting of three medium-earth orbit satellites, three ground stations and satellite user terminals used for communication, wherein the satellite user terminals in a medium-earth orbit satellite coverage area can carry out indirect / direct communication through the medium-earth orbit satellites or carry out communication by utilizing inter-satellite links among the medium-earth orbit satellites or satellite-to-ground links among the ground stations. By utilizing the system disclosed by the invention, communication among the global satellite user terminals, especially real-time communication among users in China, can be realized with lower cost.

Description

technical field [0001] The invention belongs to the technical field of satellite communication, and relates to a global satellite communication system and method. Background technique [0002] The global satellite communication system can provide real-time communication services for users distributed all over the world, has a wide range of application requirements and a huge market space, and is an important field for the development of satellite communication. The existing global satellite communication systems mainly include the Iridium Iridium system and the GlobalStar GlobalStar system. These systems can support global mobile communications, but the system construction cost and technical complexity are high. For example, the Iridium Iridium system consists of 66 low-orbit satellites. Networking, the GlobalStar GlobalStar system consists of 48 low-orbit satellites. Iridium uses complex inter-satellite link technology, and GlobalStar needs to deploy ground stations around ...

Claims

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Application Information

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IPC IPC(8): H04W84/06H04B7/185
Inventor 秦勇王宇陶孝锋翟盛华刘晓旭
Owner XIAN INSTITUE OF SPACE RADIO TECH
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