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A Gateway Station Tracking Method and Device Based on Spaceborne Phased Array Antenna

A technology of phased array antenna and gateway station, which is applied in the field of satellite communication, can solve the problems of reduced communication efficiency, high time accuracy of beam switching switch, and short-term link interruption, etc., to reduce the number of configurations, realize continuous tracking, The effect of reduced dependence

Active Publication Date: 2022-01-18
航天科工空间工程发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The above-mentioned "hard switching" method needs to configure two mechanical scanning antennas and a beam switching switch on the satellite, which often has the following disadvantages: the antenna is large in size and weight; it has high requirements for satellite attitude control accuracy and antenna installation accuracy; High switching time accuracy requirements; high requirements on the life of the servo rotating mechanism; the link will be interrupted briefly, and the communication protocol needs to stop sending data within the interruption time and the time interval before and after the interruption, which reduces the communication efficiency

Method used

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  • A Gateway Station Tracking Method and Device Based on Spaceborne Phased Array Antenna
  • A Gateway Station Tracking Method and Device Based on Spaceborne Phased Array Antenna
  • A Gateway Station Tracking Method and Device Based on Spaceborne Phased Array Antenna

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Embodiment 1

[0040] Such as figure 2 As shown, an embodiment of the present invention provides a gateway station tracking method based on a spaceborne phased array antenna. In an example, as image 3 shown, including:

[0041] The ground gateway stations are respectively the gateway station G1 and the gateway station G2. Along the direction of the flight track of the satellite S, the visible range of the gateway station G1 is the arc segment AC, and the visible range of the gateway station G2 is the arc segment BD, and the arc segment BC is the middle segment. The overlapping area of ​​the visible range of two gateway stations.

[0042] S100. The satellite calculates the beam pointing angle in real time according to the current geographic location of the gateway station and the orbital parameters.

[0043] In a specific example, in the arc segment AB within the visible range of the gateway G1, the satellite calculates the beam pointing angle according to the geographic location of the g...

Embodiment 2

[0059] Such as Figure 5 As shown, as an implementation of the above-mentioned gateway station tracking method based on a spaceborne phased array antenna, an embodiment of the present invention provides a gateway station tracking device based on a spaceborne phased array antenna. figure 2 The method embodiments shown correspond.

[0060] A gateway station tracking device based on a spaceborne phased array antenna, comprising:

[0061] In the first calculation module, the satellite is used to calculate the beam pointing angle in real time according to the current geographic location of the gateway station and the orbital parameters.

[0062] In the first tracking module, the space-borne phased array antenna generates a feeding beam, and continuously tracks the current gateway station through electrical scanning, and establishes a communication link.

[0063] In the second calculation module, in the overlapping area of ​​visible range of the current gateway station and the ne...

Embodiment 3

[0071] Such as Image 6 As shown, an embodiment of the present invention provides a schematic structural diagram of a computer device, Image 6 The computer device 12 shown is only an example, and should not impose any limitation on the functions and scope of use of the embodiments of the present invention.

[0072] Such as Image 6 As shown, computer device 12 takes the form of a general-purpose computing device. Components of computer device 12 may include, but are not limited to: one or more processors or processing units 16 , system memory 28 , bus 18 connecting various system components including system memory 28 and processing unit 16 .

[0073] Bus 18 represents one or more of several types of bus structures, including a memory bus or memory controller, a peripheral bus, an accelerated graphics port, a processor, or a local bus using any of a variety of bus structures. These architectures include, by way of example, but are not limited to Industry Standard Architectu...

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Abstract

An embodiment of the present invention discloses a gateway station tracking method and device based on a space-borne phased array antenna, including: the satellite calculates the beam pointing angle according to the current geographic location and orbital parameters of the gateway station; the phased array antenna generates a Feed the beam, continuously track the current gateway station through electrical scanning, and establish a communication link; in the overlapping area of ​​the visible range of the current gateway station and the next gateway station, the satellite calculates according to the geographic location and orbit parameters of the next gateway station Beam pointing angle; the phased array antenna generates the first feed beam and the second feed beam at the same time, the first feed beam maintains communication with the current gateway station, and the second feed beam requests to communicate with the next gateway The station establishes communication; after the satellite judges that the second feeding beam establishes a communication link with the next gateway station, the phased array antenna closes the first feeding beam; the phased array antenna controls the second feeding beam through electrical scanning Continue to track the next gateway until the next gateway switch.

Description

technical field [0001] The invention relates to the technical field of satellite communication. More specifically, it relates to a gateway station tracking method, device, computer equipment and computer-readable storage medium based on a spaceborne phased array antenna. Background technique [0002] In the low-orbit broadband satellite communication system, the satellite establishes a communication link (called a feeder link) with the ground gateway station through a feeder beam. Due to the rapid movement of low-orbit satellites, multiple gateway stations need to be arranged on the ground to realize the relay of communication links between satellites and gateway stations. When the satellite moves from the visible range of the current gateway station (communication coverage) to the visible range of the next gateway station, it needs to switch the feeder beam. At present, the low-orbit satellite tracking gateway station often adopts the "hard handover" method. "Switching" m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/185
CPCH04B7/18584H04B7/18589H04B7/18597
Inventor 杨彪何文婷刘宝琪章雷刘丽窦洪浩赵岩李常亮王崇李明明
Owner 航天科工空间工程发展有限公司