Stefano Speretta

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This paper presents the architecture of a small university satellite that we have developed. The main design criteria were low cost and fault tolerance, which have been achieved by using Commercial Off The Shelf components and by replicating all critical functions, while monitoring the state of the system for failures. The focus of the paper is on overall(More)
Avionics for satellites is a market which is continuously growing in these years, especially thanks to the availability of low cost launch vectors. This cost reduction enabled many institutions (industries but also universities) to develop their own satellites. A first result of this process was the CubeSat concept: a really small satellite, built using low(More)
The paper describes a sequence of laboratory exercises focused on designing and building a TX-RX radio chain where all the processing uses digital circuits (SDR approach). The students have access to a high-level codesign environment, which allows to design, simulate and synthesize analog/digital systems. They can explore a variety of design solutions, and(More)
—Many universities are now involved in projects related to design, assembly, and operation of small satellites. These projects, with participation of researchers and students, and support of external companies, do not aim to compete with commercial satellites; the main goal is to increase the experience level which contributes to make space applications(More)
COTS components are gathering more and more interest from satellite developers thanks to their lower cost and ease of procurement as compared to space qualified ones. A number of studies to evaluate the possibility of COTS use in space systems are under way: automotive and consumer electronic devices are evolving fast and their innovative solutions can have(More)
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