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Virtual channel communication is a commonly used technology in spacecraft to transfer platform engineering data and high speed scientific data from payloads such as synthetic aperture radar or hyper spectral camera. FIFO type buffer has been widely applied in virtual channel data transfer owing to its simple interface. But the control logic of FIFO can be disturbed by single event upset in space radiation...
Communications Operations Procedure-1(COP-1) is widely used for reliable transmission of telecommand data for space missions. This paper focuses on the delay performance of COP-1 protocol over long and lossy link. The typical work conditions and process are studied combined with the characters of both the link and the transmission task. Based on the analysis of the procedure, the quantificational...
To satisfy more and more complicated requirements on information recording, processing, exchange etc. in newly developed intelligent satellites, a distributed storage system is designed based on SpaceWire network in satellite platform. In this distributed storage system, a SpaceWire router unit serving as the core device of star network connects several nodes, including onboard computers, namely,...
As a switched network, SpaceWire can easily connect SpaceWire nodes together to realize parallel data communication, which can not only contain spacecraft interconnection between independent equipment, can also be used as “virtual backplane” to achieve mutual connection and communication between avionics internal hardware modules. However, SpaceWire nodes using asynchronous parallel operation mode...
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