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Multiple Access Radar Using Slow Chirp Modulation
2020 (English)In: 2020 IEEE Radar Conference (RadarConf20), New York, NY: IEEE, 2020, p. 1-6Conference paper, Published paper (Refereed)
Abstract [en]

The cohabitation of several radars, operating in the same frequency band, has become an essential and urgent topic as active safety systems for automotive applications are rolled out. An obvious concern is that mutual interference must be managed. Separating users in time, i.e. TDMA, achieves the required level of isolation in a straightforward way. CDMA techniques providing sufficient channel isolation are less obvious. The paper develops an alternative CDMA method, called Slow Chirp Modulation (SCM). SCM utilizes the full coherent integration time for transmission of a single aperiodic but ergodic signal, allowing target range and velocity to be retrieved but minimizing spectral occupancy. Spectral efficiency two orders of magnitude higher than for the discussed alternative methods is obtained, allowing more than a thousand non-interfering channels. Relying on indicated hardware schematics, the paper demonstrates the functionality of the novel signal processing algorithms, which are required for SCM. ©2020 IEEE

Place, publisher, year, edition, pages
New York, NY: IEEE, 2020. p. 1-6
Series
The proceedings of the ... IEEE National Radar Conference, ISSN 1097-5659, E-ISSN 2375-5318
Keywords [en]
Radar signal processing, Chirp, Frequency modulation, OFDM, Automotive electronics
National Category
Embedded Systems Signal Processing
Identifiers
URN: urn:nbn:se:hh:diva-43699DOI: 10.1109/RadarConf2043947.2020.9266520ISBN: 978-1-7281-8942-0 (electronic)ISBN: 978-1-7281-8943-7 (print)OAI: oai:DiVA.org:hh-43699DiVA, id: diva2:1509514
Conference
2020 IEEE Radar Conference (RadarConf20), Florence, Italy, 21-25 Sept., 2020
Funder
Vinnova, 2018-01929Available from: 2020-12-14 Created: 2020-12-14 Last updated: 2020-12-14Bibliographically approved

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Nilsson, Emil

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CiteExportLink to record
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