Phase-0 study of a Disaster Management Satellite Constellation with a Focus on the Indian Subcontinent
Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
This report explores the feasibility of a small satellite constellation used for disaster managementin India. It shows that a small satellite constellation for the Indian subcontinent is not feasiblebased on the requirements and constraints set in this report and thus not worth to pursue in thisform. Although it has been made clear that effective disaster management is a must, especiallyin India and that remote sensing from space is an excellent tool for this purpose, based on thespatial and temporal requirements derived from the occurrence and impact of the disasters, itwould be impossible to propose a mission within the constraints set by this report. After a carefulanalysis of the Indian space budget, existing missions and the economical impact of the disasters,it is determined that a disaster management mission for the Indian subcontinent has a maximummission budget of 30 million USD, a mass constraint of 500 kg and a volume constraint of 5m3 for all the satellites in the constellation combined. The two instrument types with provencapabilities in remote sensing disasters, microwave and passive optical instruments, have each itsown reasons to be unsuitable for a small satellite constellation. Active microwave instruments,more specific SAR, are proven to be useful in detecting and monitoring disasters. However theinstruments require an antenna panel that would be too large to fit on a small satellite to meetthe spatial requirements or the constellation requires too many satellites and thus exceedingthe budget to meet the required revisiting time. The number of satellites and size of the SARantenna panel is determined with a developed algorithm in MATLAB. Optical instruments arenot suitable for a mission dedicated to disaster management due to the cloud cover visibilityconstraint and limitations set by the usage of indexes.
Place, publisher, year, edition, pages
2015. , 67 p.
Technology, small satellites, disaster management, satellite constellation, India, SAR, optical sizing, MATLAB, cloud cover visibility
IdentifiersURN: urn:nbn:se:ltu:diva-58765Local ID: f534ea79-d3cd-4849-bbc5-687a6d6ce1d3OAI: oai:DiVA.org:ltu-58765DiVA: diva2:1032153
Subject / course
Student thesis, at least 30 credits
Space Engineering, master's level
Validerat; 20150504 (global_studentproject_submitter)2016-10-042016-10-04Bibliographically approved