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Aerospace 2018, 5(3), 84; https://doi.org/10.3390/aerospace5030084

Simulation and Experimental Evaluation of a Flexible Time Triggered Ethernet Architecture Applied in Satellite Nano/Micro Launchers

1
DIET, Sapienza University of Rome, 00184 Rome, Italy
2
SPACELAB, Via degli Esplosivi 1, 00134 Colleferro, Italy
*
Author to whom correspondence should be addressed.
Received: 13 July 2018 / Revised: 4 August 2018 / Accepted: 7 August 2018 / Published: 9 August 2018
(This article belongs to the Special Issue Verification Approaches for Nano- and Micro-Satellites)
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Abstract

The success of small satellites has lead to the study of new technologies for the realization of Nano and Micro Launch Vehicle (NMLV) in order to make competitive launch costs. The paper has the objective to define and experimentally investigate the performance of a communication system for NMLV interconnecting the End Systems as On-Board Computer (OBC), telemetry apparatus, Navigation Unit...we propose a low cost Ethernet-based solution able to provide the devices with high interconnection bandwidth. To guarantee hard delays to the Guide, Navigation and Control applications we propose some architectural changes of the traditional Ethernet network with the introduction of a layer implemented in the End Systems and allow for the lack of any contention on the network links. We show how the proposed solution has comparable performance to the one of TTEthernet standard that is a very expensive solution. An experimental test-bed equipped with Ethernet switches and Hercules boards by Texas Instruments is also provided to prove the feasibility of the proposed solution. View Full-Text
Keywords: nano and micro launch vehicle; flexible time triggered Ethernet; TTEthernet; experimental test-bed nano and micro launch vehicle; flexible time triggered Ethernet; TTEthernet; experimental test-bed
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Eramo, V.; Lavacca, F.G.; Valente, F.; Pisculli, A.; Caporossi, S. Simulation and Experimental Evaluation of a Flexible Time Triggered Ethernet Architecture Applied in Satellite Nano/Micro Launchers. Aerospace 2018, 5, 84.

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