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Beidou No.3 phased array agile inter-satellite link remote control uplink path searching method

An intersatellite link and path search technology, applied in the field of space navigation

Pending Publication Date: 2020-06-19
CHINA XIAN SATELLITE CONTROL CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] Currently there is no remote control uplink path search method used in the BDS-3 constellation phased array agile intersatellite link

Method used

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  • Beidou No.3 phased array agile inter-satellite link remote control uplink path searching method
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  • Beidou No.3 phased array agile inter-satellite link remote control uplink path searching method

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Embodiment Construction

[0033] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0034] The present invention is a Beidou-3 phased array agile inter-satellite link remote control uplink path search method, the process of which is as follows image 3 As shown, the specific steps are as follows:

[0035] Step 1, according to the different network structures of 20 time slots, construct the link reachability graph between nodes;

[0036] Step 2, searching for the uplink path for the peripheral nodes according to the link reachability graph constructed in step 1;

[0037] Step 3, calculating the path quality of each uplink path searched in step 2;

[0038] Step 4, for all the uplink paths of each peripheral node, first sort according to the path quality from high to low, and then select several paths with the highest quality as their uplink paths; the reason for selecting several paths is that through multiple uplink paths ...

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Abstract

The invention discloses a Beidou No.3 phased array agile inter-satellite link remote control uplink path searching method, which is specifically implemented according to the following steps of: 1, constructing an inter-node link reachability graph according to 20 different network structures of time slots; 2, searching an uplink path for a peripheral node according to the link reachability graph constructed in the step 1; 3, calculating the path quality of each uplink path searched in the step 2; 4, sorting all uplink paths of each peripheral node according to the path quality from high to low, and then selecting a plurality of uplink paths with the highest path quality as the uplink paths; and 5, repeating the steps 2-4, and completing uplink path optimization work of each peripheral node. According to the Beidou No.3 phased array agile inter-satellite link remote control uplink path searching method, the corresponding uplink path can be searched by using an inter-satellite link, andremote control data is transmitted to the target satellite from a ground system through a plurality of hops.

Description

technical field [0001] The invention belongs to the technical field of aerospace navigation, and relates to a remote control uplink path search method for Beidou-3 phased array agile inter-satellite links. Background technique [0002] The link building nodes of the BDS-3 phased array inter-satellite link are 30 BDS-3 satellites and several ground Ka stations. In order to manage the constellation, the S station on the ground also participates in the networking, receiving downlink data from the satellite and sending uplink data to the satellite. [0003] During networking: S links can be established between satellites and S stations; Ka links can be established between satellites and satellites, satellites and Ka stations. For a satellite, at a certain moment, only an S link can be established with one S station, and a Ka link can only be established with one satellite or one Ka station, but the S link and the Ka link do not affect each other , can coexist. [0004] The ne...

Claims

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Application Information

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IPC IPC(8): G01S19/01G01S19/10G01S19/35
CPCG01S19/01G01S19/10G01S19/35Y02D30/70
Inventor 苏博张峰王元姜博孙振宇车斌魏峻王乐王博儒黄刚王前程
Owner CHINA XIAN SATELLITE CONTROL CENT