A 1296 MHz Earth-Moon-Earth Communication System

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dc.contributor.authorLindgren, Magnus
dc.contributor.departmentChalmers tekniska högskola / Institutionen för rymd- och geovetenskapsv
dc.contributor.departmentChalmers University of Technology / Department of Earth and Space Sciencesen
dc.date.accessioned2019-07-03T13:39:18Z
dc.date.available2019-07-03T13:39:18Z
dc.date.issued2015
dc.description.abstractThe task of designing, building and characterizing an Earth–Moon–Earth (EME) communication system in the 1296 MHz amateur radio band has been successfully accomplished. Using the radar equation and thermal noise theory, in conjunction with measured and estimated system parameters, the lunar echo signal to noise ratio (SNR) has been estimated at 5.4+1.2 −1.6 dB (2) in a 100 Hz bandwidth. The results of empirical long-term averaged SNR measurements are within the boundaries of this estimate, thus adding to its validity. Additionally, measurements of the libration-induced Doppler spread of the lunar echoes show good agreement with theoretical predictions. Further experiments should be conducted however, in order to asses the repeatability of the results. Improvements to the system and measurement methods should also be considered. The report focuses on both theory and practice and apart from the above, additional attention is given to the topic of low noise figure (NF) measurements due to the systemic importance of the LNA NF parameter.
dc.identifier.urihttps://hdl.handle.net/20.500.12380/217884
dc.language.isoeng
dc.setspec.uppsokLifeEarthScience
dc.subjectGeovetenskap och miljövetenskap
dc.subjectKommunikationssystem
dc.subjectInformations- och kommunikationsteknik
dc.subjectInnovation och entreprenörskap (nyttiggörande)
dc.subjectEarth and Related Environmental Sciences
dc.subjectCommunication Systems
dc.subjectInformation & Communication Technology
dc.subjectInnovation & Entrepreneurship
dc.titleA 1296 MHz Earth-Moon-Earth Communication System
dc.type.degreeExamensarbete för masterexamensv
dc.type.degreeMaster Thesisen
dc.type.uppsokH
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