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Multi-mode relay forwarding method based on data security supervision

A forwarding method and data security technology, applied in the direction of digital transmission system, radio transmission system, electrical components, etc., can solve the problems of inability to realize relay communication, unable to forward data security supervision, etc., to achieve timely and effective relay communication, solution Timeliness issues and the effect of safety supervision

Active Publication Date: 2019-01-15
AEROSPACE DONGFANGHONG SATELLITE
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AI Technical Summary

Problems solved by technology

This relay method of direct radio frequency forwarding cannot supervise the security of the forwarded data, and can only realize real-time forwarding between the ground station and the target spacecraft, when the spacecraft and the ground station cannot be visible to the relay satellite at the same time Effective relay communication cannot be achieved

Method used

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  • Multi-mode relay forwarding method based on data security supervision
  • Multi-mode relay forwarding method based on data security supervision
  • Multi-mode relay forwarding method based on data security supervision

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Experimental program
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Embodiment Construction

[0026] A multi-path relay forwarding method based on data security supervision, such as Figure 5 As shown, the steps are as follows:

[0027] (1) The relay forwarding of the relay satellite is divided into forward forwarding (ground station -> relay satellite -> spacecraft), reverse forwarding (spacecraft -> relay satellite -> ground station), backhaul forwarding ( Spacecraft>Relay Satellite->Spacecraft) in three directions, the data forwarding in these three directions adopts the same relay frame format.

[0028] (2) The ground station / spacecraft (transmitter) sends the data to be forwarded to the relay satellite through the corresponding channel according to the agreed relay frame format.

[0029] (3) After the satellite center computer of the relay satellite receives the data to be forwarded, it first checks the correctness of the data. If the data verification error is found, the data is discarded and the corresponding identification bit is set. The identification bit ca...

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Abstract

A multi-mode relay forwarding method based on data security supervision is provided. By using the relay forwarding method of the invention, firstly, the safety supervision of forwarding data can be realized on the relay satellite to avoid forwarding erroneous data to the target. Secondly, using the time-delay relay mode, the remote control and relay transmission of telemetry data can be completedwhen the ground station and spacecraft can not be visible at the same time, and can meet the needs of high-precision time telecontrol mission. At the same time, the data hosting and timing auto-control functions can be provided for spacecraft through the return and forward mode. The relay forwarding mode of the invention can realize the safety supervision of forwarding data, meet the requirementsof a plurality of tasks, improve the flexibility of the relay satellite, reduce the time cost of ground maintenance, and expand the application mode of the relay satellite.

Description

technical field [0001] The invention relates to a multi-mode relay forwarding method based on data safety supervision, and belongs to the technical field of satellite relay communication. Background technique [0002] A relay satellite is a special communication satellite that can be used to track, measure and control medium and low-orbit spacecraft, and can transmit the orbit and telemetry data of these spacecraft to the earth observation and control station. This kind of satellite is an important part of large-scale space systems. It can not only greatly increase the coverage of aerospace measurement and control networks, but also enhance the real-time performance of spacecraft measurement and control and satellite-ground data transmission, which solves the problems existing in ground-based measurement and control. . This is of great significance to reduce the operational risk of spacecraft, improve the efficiency of ground measurement and control command, especially in t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/185H04L1/00
CPCH04B7/18508H04B7/1851H04L1/0061
Inventor 刘小宁熊浩伦侯文才王冰
Owner AEROSPACE DONGFANGHONG SATELLITE
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