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A low-orbit satellite feeder link communication method based on los MIMO architecture

A feeder link, low-orbit satellite technology, applied in the field of satellite mobile communications, to achieve the effects of improved traversal channel capacity, strong versatility and portability

Active Publication Date: 2022-07-05
SOUTHEAST UNIV
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  • Application Information

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Problems solved by technology

At present, studies have verified the excellent performance of LoS MIMO technology in geostationary earth orbit (Geostationary Earth Orbit, GEO) satellite feeder links, but there is no relevant research on applying LoS MIMO to low-orbit satellite systems

Method used

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  • A low-orbit satellite feeder link communication method based on los MIMO architecture
  • A low-orbit satellite feeder link communication method based on los MIMO architecture
  • A low-orbit satellite feeder link communication method based on los MIMO architecture

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Embodiment Construction

[0050] The technical solutions of the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments. These embodiments are only used to illustrate the present invention and not to limit the protection scope of the present invention.

[0051] The present invention provides a low-orbit satellite feeder link communication method based on LoS MIMO architecture, comprising the following steps:

[0052] Step 1, first obtain the operating parameters of the low-orbit satellite feeder link system based on the LoS MIMO architecture. figure 1 For the low-orbit satellite feeder link based on the LoS MIMO architecture involved in this embodiment, both the ground station and the low-orbit satellite can be equipped with multiple antennas, and the multiple antennas of the ground station can be interconnected by wire or wirelessly. P1 and P2 respectively represent the two antenna positions of the ground station. The working pa...

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Abstract

The invention discloses a low-orbit satellite feeder link communication method based on LoSMIMO architecture, which can greatly improve the traversal channel capacity of the feeder link of a low-orbit satellite constellation system without increasing system power consumption. For a communication system equipped with multiple antennas on both the low-orbit satellite and the ground station, the method optimizes the design of the feeder link traversal channel capacity of the system from the satellite side and the ground side respectively. On the ground side, according to the location of the ground station and the trajectory parameters of the low-orbit satellites, the ground antenna placement scheme to obtain the optimal traversal channel capacity can be calculated. On the satellite side, according to the trajectory of the low-orbit satellite, the method can also calculate the satellite attitude and orbit adjustment scheme that can obtain the optimal traversal channel capacity.

Description

technical field [0001] The invention belongs to the field of satellite mobile communication, and relates to a low-orbit satellite feeder link communication method based on LoS MIMO architecture. Background technique [0002] As a supplement and extension of the terrestrial mobile communication system, it is also the fifth generation of terrestrial (5G, 5 th Generation) mobile communication technology, the communication system based on low-orbit satellite constellation has become a research hotspot in academia and industry. With the increasing demand for satellite communication, in order to support high-throughput data transmission, it is necessary to find a more efficient data transmission scheme for low-orbit satellite feeder links to ensure the performance of the entire satellite communication link. [0003] Most of the existing low-orbit satellite constellation systems, such as OneWeb, SpaceX, and Telesat, use the Ka-band to realize feeder link communication. However, t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/185H04B7/0413
CPCH04B7/18519H04B7/0413Y02D30/70
Inventor 王闻今李灵瑄郑奕飞陈婷婷房天昊丁睿尤力
Owner SOUTHEAST UNIV
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