Method for establishing communication links between master-and-slave satellites

A technology of communication link and establishment method, which is applied in the field of establishment of communication link between master and slave satellites, and can solve the problem of few studies on the establishment of inter-satellite link

Inactive Publication Date: 2013-11-27
DALIAN UNIV
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0003] At present, most of the research on the establishment of wireless communication links at home and abroad is to study the establishment of satellite-ground links or the establishment of ground wireless communication links. There are very few studies on the establishment of satellite point-to-point inter-satellite links.

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  • Method for establishing communication links between master-and-slave satellites
  • Method for establishing communication links between master-and-slave satellites
  • Method for establishing communication links between master-and-slave satellites

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Embodiment Construction

[0024] In order to make the technical solutions and advantages of the present invention more clear, the technical solutions in the embodiments of the present invention are clearly and completely described below in conjunction with the drawings in the embodiments of the present invention:

[0025] The master-slave inter-satellite communication link establishment method disclosed by the present invention is applicable to a satellite network comprising a master satellite and at least one slave satellite: it has the following steps:

[0026] Step 1: The master satellite detects the number of slave satellites in its coverage area and the orbit parameter information of the slave satellites, calculates the distance between the master satellite and each slave satellite, and arranges the slave satellites in the order of the distance from shortest to farthest. Such as figure 1 As shown in , the master satellite detects the number of multiple slave satellites within its coverage area and...

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Abstract

The invention discloses a method for establishing communication links between master-and-slave satellites, wherein the master-and-slave satellites include one master satellite and at least one slave satellite. The method concretely includes the steps that a channel between the master satellite and each slave satellite is divided into a control channel and a communication channel; the master satellite and each slave satellite respectively establish a system structure of itself; the links are established between the master satellite and the slave satellites, and the communication process starts; the master satellite sends control frames corresponding to all the satellites in a control time slot, each slave satellite captures the synchronous head of the control frames, a local clock of each slave satellite is calibrated by referring to a local clock of the master satellite, and time slot synchronization is completed; after the time synchronization, each slave satellite sends a communication frame in a communication time slot, link establishment is completed after the master satellite captures the communication frames sent by the slave satellites, a network is adjusted to the communication channel, and data communication starts. According to the technical scheme, the method for establishing the communication links has the advantages of being capable of centralized management, easy to maintain, high in safety, short in delay time and low in transmission bit error rate.

Description

technical field [0001] The invention belongs to the technical field of satellite network communication, and in particular relates to a method for establishing a communication link between master and slave satellites. Background technique [0002] Due to the single orbit of the traditional LEO and GEO single-layer satellite network, its performance such as communication delay and communication range cannot meet the needs of future satellite communication business development. The GEO-LEO double-layer network based on the inter-satellite link network not only has the advantages of large GEO communication capacity, wide communication range, fast LEO movement speed, and short transmission delay, but also has multiple inter-satellite path options and network invulnerability Strong capabilities and other advantages that a single-layer satellite network cannot match. The GEO-LEO double-layer network adopts the master-slave star network mode, that is, LEO is used as a slave satelli...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/185H04B7/26
Inventor 韩睿彭涛刘海燕刘春玲
Owner DALIAN UNIV
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