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Earth station and access method and device thereof

An access method and earth station technology, applied in the field of satellite communication, can solve problems such as complex operation, and achieve the effect of solving complex operation and convenient and quick access to constellation system

Active Publication Date: 2020-12-22
TSINGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In view of this, the object of the present invention is to provide an earth station and its access method and device, so as to alleviate the technical problem of complex operation when the existing earth station accesses the constellation system

Method used

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  • Earth station and access method and device thereof
  • Earth station and access method and device thereof
  • Earth station and access method and device thereof

Examples

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Embodiment 1

[0030] According to an embodiment of the present invention, an embodiment of an earth station access method is provided. It should be noted that the steps shown in the flow charts of the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions, and , although a logical order is shown in the flowcharts, in some cases the steps shown or described may be performed in an order different from that shown or described herein.

[0031] figure 1 is a flow chart of an earth station access method according to an embodiment of the present invention, such as figure 1 As shown, the method includes the following steps:

[0032] Step S102, calculating the satellite trajectory segment of each satellite in the constellation system to be connected and the satellite trajectory segment of the GEO satellite;

[0033] Step S104, based on the satellite trajectory segments of the satellites and the satellite trajectory segments of the GEO satellit...

Embodiment 2

[0073] The embodiment of the present invention also provides an earth station access device, the earth station access device is used to implement the earth station access method provided in the above-mentioned content of the embodiment of the present invention, the following is provided by the embodiment of the present invention The specific introduction of the access device of the earth station.

[0074] Such as Figure 5 as shown, Figure 5 It is a schematic diagram of the access device of the above-mentioned earth station, the access device of the earth station includes: a calculation unit 10, a determination unit 20 and an access unit 30, wherein,

[0075] The calculation unit 10 is used to calculate the satellite trajectory segment of each satellite in the constellation system to be accessed and the satellite trajectory segment of the GEO satellite;

[0076] The determining unit 20 is configured to determine a target satellite trajectory segment based on the satellite t...

Embodiment 3

[0084] An embodiment of the present invention also provides an earth station for performing the method described in one of the embodiments, the earth station further includes: a shaped beam antenna or a phased array antenna, wherein the shaped beam antenna is A strip shape, including a major axis direction and a minor axis direction; the phased array antenna is used to scan the track segment of the return orbit satellite with a fixed beam; the minor axis direction of the shaped beam antenna is less than or equal to the third preset Threshold: at least one satellite is contained within the pointing range of the shaped beam antenna or within the scanning trajectory of the phased array antenna.

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Abstract

The invention provides an earth station and an access method and device thereof, and relates to the technical field of satellite communication. The method comprises the steps: calculating the satellite track segments of all satellites and the satellite track segments of GEO satellites in a to-be-accessed constellation system; determining a target satellite trajectory segment based on the satellitetrajectory segment of each satellite and the satellite trajectory segment of the GEO satellite; accessing a satellite corresponding to the target satellite trajectory segment by using a preset antenna, wherein the preset antenna is a shaped beam antenna or a phased array antenna, so that the technical problem of complex operation when an existing earth station is accessed to a constellation system is solved.

Description

technical field [0001] The present invention relates to the technical field of satellite communication, in particular to an earth station and its access method and device. Background technique [0002] The earth station is the ground station for the communication between the ground and the satellite. During the operation of the satellite, the earth station may be within the coverage of multiple satellites at the same time. The selection of the access strategy of the earth station directly affects the performance of the constellation system. Traditional inter-satellite access strategies include distance priority, coverage time priority, comprehensive weighted access, load balancing and other strategies. The realization of the traditional strategy requires the earth station to calculate the ephemeris in real time to find the satellite position, select the satellite that meets the strategy requirements at the current moment, and rotate the antenna to access it. For non-geostat...

Claims

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Application Information

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IPC IPC(8): H04B7/185
CPCH04B7/18519H04B7/18513
Inventor 靳瑾林子翘孙涤清晏坚匡麟玲
Owner TSINGHUA UNIV
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