High–Speed Data Transmission Subsystem of the SEOSAR/PAZ Satellite
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Date
2013-04
ORCID
Advisor
Referee
Mark
Journal Title
Journal ISSN
Volume Title
Publisher
Společnost pro radioelektronické inženýrství
Abstract
This paper analyzes a digital interface and bus system modeling and optimization of the SEOSAR/PAZ Earth Observation satellite. The important part of the satellite is an X–band Synthetic Aperture Radar instrument that integrates 384 Transmit/Receive Modules located in 12 antenna panels 7.5 m away from the central processor and controlled by a synchronous 10 Mbps bidirectional serial protocol. This type of mid–range point–to–multipoint transmission is affected by bit errors due to crosstalk, transmission line attenuation and impedance mismatches. The high–speed data communication network has been designed to optimize the transmission by using a simulation model of the data distribution system which takes into account the worst–case scenario and by developing a lab–scaled prototype which exhibits BER of 10-11 for an interfering signal of 10 Vpp. The result is a point–to–multipoint bidirectional transmission network optimized in both directions with optimal values of loads and equalization resistors. This high–speed data transmission subsystem provides a compact design through a simple solution.
Description
Citation
Radioengineering. 2013, vol. 22, č. 1, s. 394-399. ISSN 1210-2512
http://www.radioeng.cz/fulltexts/2013/13_01_0394_0399.pdf
http://www.radioeng.cz/fulltexts/2013/13_01_0394_0399.pdf
Document type
Peer-reviewed
Document version
Published version
Date of access to the full text
Language of document
en