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Radio signal DOA estimation: Implementing radar signal direction estimation on an FPGA.
Linköping University, Department of Electrical Engineering, Computer Engineering.
2019 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

This master’s thesis covers the design and implementation of a monopulse directionof arrival (DOA) estimation algorithm on an FPGA. The goal is to implement a complete system that is capable of estimating the bearing of an incident signal. In order to determine the estimate quality both a theoretical and practical noise analysis of the signal chain is performed.

Special focus is placed on the statistical properties of the transformation from I/Q-demodulated signals with correlated noise to a polar representation. The pros and cons for three different methods of calculating received signal phasors are also covered.The system is limited to two receiving channels which constrains this report to a 2D analysis. In addition the used hardware is limited to C-band signals. We show that an FPGA implementation of monopulse techniques is definitely viable and that an SNR higher than ten dB allows for a gaussian approximation of the polar representationof an I/Q signal.

Place, publisher, year, edition, pages
2019. , p. 60
Keywords [en]
FPGA, DOA, Radar, Direction of Arrival, Monopulse, Amplitude Monopulse, Phase Monopulse
National Category
Embedded Systems
Identifiers
URN: urn:nbn:se:liu:diva-157144ISRN: LiTH-ISY-EX--19/5199--SEOAI: oai:DiVA.org:liu-157144DiVA, id: diva2:1319006
External cooperation
FOI
Subject / course
Electrical Engineering
Presentation
2019-05-10, Nollstället, B-Huset, Campus Valla, Linköping, 10:00 (English)
Examiners
Available from: 2019-06-03 Created: 2019-05-29 Last updated: 2019-06-03Bibliographically approved

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CiteExportLink to record
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  • apa
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