Testing system and method of uplink of high-speed communication processor of spaceship

Abstract

The invention provides a ground testing system and method of a high-speed communication processor of a new-generation spaceship based on the IPOVERCCSDS standard. According to the method, firstly, all data needing to be sent to the spaceship through a ground control center are simulated and generated and comprise video / voice data, network data and remote control data; the data are packaged to be a CCSDS data package; channel coding and scrambling are carried out on the well packaged CCSDS data package, then padding data are generated according to the simulated data generation rate, and therefore all the data are sent to the high-speed communication processor of the spaceship through an LVDS interface at a constant rate; finally, the simulation data and the output data of the high-speed communication processor of the spaceship are compared, the drop frame and the error rate of the high-speed communication processor of the spaceship are counted, and delaying is calculated. The testing method can simulate and generate normal or various kinds of error data packages, comprehensively test every function index of the high-speed communication processor of the new-generation spaceship, and evaluate the reliability and the fault-tolerant ability of the high-speed communication processor of the new-generation spaceship.

Description

technical field [0001] The patent of the present invention relates to the field of spaceship payload ground testing technology, in particular to a ground testing system and method for the uplink of a spaceship high-speed communication processor. Background technique [0002] With the rapid development of aerospace engineering, the diversity and long-term nature of space missions and the urgency of international cooperation have put forward higher requirements and more severe challenges for space-ground communications, requiring the data transmission mode between the spacecraft and the ground to be changed from simple data exchange Shift to network transport. However, due to the particularity of spacecraft and ground data transmission channels, such as large data propagation delay, low data transmission efficiency, high error rate, and frequent packet loss, the Space Data System Advisory Committee specially designed the CCSDS protocol to achieve data reliability at the link l...

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Problems solved by technology

However, due to the particularity of spacecraft and ground data transmission channels, such as large data propagation delay, low data transmission efficiency, high error rate, and frequent packet loss, the Space Data System Advisory Committee specially designed the CCSDS protocol to achieve data reliability at the link layer. transmission

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