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Reliable On Board Data Processing System for the ICEYE- 1 satellite
KTH, School of Information and Communication Technology (ICT).
2016 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

Recent development in electronics for mobile devices has led to the decrease in sizes and cost of autonomous complex embedded systems such as satellites. It is now possible to build a satellite quicker and only for a fraction of previous costs by using Commercial Off The Shelf (COTS) components. Yet, there are some obstacles that need to be overcome before a successful small satellite can be designed. Among these are the radiation environment, thermal issues, the overall system complexity and tight schedules. This thesis addresses these issues and proposes an overall approach for designing small satellites’ electronics. This approach can be summarised in 6 recommendations:

  1. Keep it simple

  2. Use fast hardware iterations

  3. Do not use space grade components

  4. Use a single string design on the system level (no redundancy)

  5. Design with limited trust in the software

  6. Use simple, accessible and easy updatable documentation

With respect to those recommendations an on board data processing system, the Processing Board, has been designed for the ICEYE-1 satellite. The ICEYE-1 satellite is a fully commercial Synthetic Aperture Radar (SAR) satellite that will be launched in December 2017. The designed board has been manufactured and verified during airborne test campaigns.

Abstract [sv]

Nya elektronikutvecklingar för mobiltelefoner har lett till en minskning av storlek och kostnader för andra autonoma komplexa inbyggda system som t.ex. satelliter. Så kallade småsatelliter kan numera byggas snabbare och för endast en bråkdel av tidigare kostnader med hjälp av Commercial Off The Shelf (COTS) komponenter. Det finns dock vissa hinder som måste övervinnas om man vill designa en pålitligt fungerande småsatellit. Till dessa kan räknas strålningsmiljön, väl fungerande värmeledning, det totala systemets komplexitet samt snäva tidtabeller. Detta examensarbete behandlar dessa frågor och föreslår en övergripande strategi för att designa elektronik för småsatelliter. Detta tillvägagångssätt kan sammanfattas i 6 rekommendationer:

  1. Håll det enkelt

  2. Implementera snabba hårdvaruiterationer

  3. Använd inte rymdklassade komponenter

  4. Använd ingen redundans på systemnivå

  5. Designa med en begränsad tilltro på mjukvaran

  6. Dokumentera på ett enkelt, tillgängligt och lätt uppdateringsbart sätt

Dessa rekommendationer har använts till att utveckla ett databehandlingssystem, kallat "Processing Board", till småsatelliten ICEYE-1. ICEYE-1 är en kommersiell Synthetic Aperture Radar (SAR) satellit som kommer att skjutas i omloppsbana i december 2017. Databehandlingssystemet i fråga har utvecklats och verifierats i samband med flygplansburna testkampanjer.

Place, publisher, year, edition, pages
2016. , p. 53
Series
TRITA-ICT-EX ; 2016:189
Keywords [en]
Synthetic Aperture Radar (SAR); Printed Circuit Board (PCB); Satellite; New Space; Field Programmable Gate Array (FPGA)
Keywords [sv]
Synthetic Aperture Radar (SAR); Printed Circuit Board (PCB); Satellite; New Space; Field Programmable Gate Array (FPGA)
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:kth:diva-204920OAI: oai:DiVA.org:kth-204920DiVA, id: diva2:1086873
Subject / course
Electronic- and Computer Systems
Educational program
Master of Science - System-on-Chip Design
Examiners
Available from: 2017-04-04 Created: 2017-04-04 Last updated: 2018-09-04Bibliographically approved

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