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Method for quickly establishing satellite-to-ground link

A technology of link establishment and establishment method, which is applied in the field of satellite communication, can solve problems such as easy loss of data, achieve high economic and social benefits, improve invulnerability, and good link adaptability

Inactive Publication Date: 2013-07-31
DALIAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims at the problem that data is easily lost in the way of directly sending data at present, and proposes a method for quickly establishing a satellite-ground link in a satellite communication network

Method used

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  • Method for quickly establishing satellite-to-ground link
  • Method for quickly establishing satellite-to-ground link
  • Method for quickly establishing satellite-to-ground link

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Embodiment Construction

[0043] In the following part, the technical solutions of the present invention will be further described in detail in conjunction with the accompanying drawings. The present invention provides a method for quickly establishing a communication link between the satellite and the ground and the basic format of the required data. The method divides the establishment process of the link into four states, and executes different tasks in each state. operation, such as figure 1 shown. figure 1 It is a state transition diagram when the satellite-ground link is quickly established in the present invention, and the diagram describes the state of each node in the satellite network at a certain moment. According to the characteristics and requirements of the link establishment process, each communication node state can be divided into four types: scanning state, waiting for reply signal state, waiting for confirmation signal state and normal communication state. The state transition proc...

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Abstract

The invention relates to a method for quickly establishing a satellite-to-ground link, and belongs to the technical field of satellite communication. In order to solve the problem that the data are easy to lose by adopting a direct data transmission method in the prior art, the invention provides a method for quickly establishing a satellite-to-ground link in a satellite communication network. Inthe method, a link establishment protocol, a basic frame structure, and a single / multiple request link establishment mode which are related to one another are designed on the basis of the full analysis of the spatial environment of the satellite communication. Finally, the transmission time and the capture time of the satellite-to-ground link are analyzed, and a qualitative analysis of the optimal length of the pseudorandom sequence in the frame structure is given. By adopting the simulation analysis, the quick establishment method of the satellite-to-ground link is wide in application.

Description

Technical field [0001] The technical field of the invention is satellite communication. Based on the analysis of the satellite-to-ground channel, this method proposes a rapid establishment method of the satellite-to-ground link in the satellite communication network, which solves the problem that the data is easily lost in the current method of directly sending data, and is suitable for communication satellites and military applications in our country. The satellite-ground station link in the satellite system is established quickly. Background technique [0002] The feasibility and quality of services provided by the satellite communication network system are largely affected by the characteristics of the link between the satellite and the terminal. At present, the research on the link between satellite ground stations is mainly involved in the planning of satellite resources in China, and the satellite-ground station resource optimization and task scheduling are involved. ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/185
Inventor 潘成胜魏德宾蔡睿妍郭慧
Owner DALIAN UNIV