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Multiple Access Radar Using Slow Chirp Modulation
2020 (engelsk)Inngår i: 2020 IEEE Radar Conference (RadarConf20), New York, NY: IEEE, 2020, s. 1-6Konferansepaper, Publicerat paper (Fagfellevurdert)
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

sted, utgiver, år, opplag, sider
New York, NY: IEEE, 2020. s. 1-6
Serie
The proceedings of the ... IEEE National Radar Conference, ISSN 1097-5659, E-ISSN 2375-5318
Emneord [en]
Radar signal processing, Chirp, Frequency modulation, OFDM, Automotive electronics
HSV kategori
Identifikatorer
URN: urn:nbn:se:hh:diva-43699DOI: 10.1109/RadarConf2043947.2020.9266520ISBN: 978-1-7281-8942-0 (digital)ISBN: 978-1-7281-8943-7 (tryckt)OAI: oai:DiVA.org:hh-43699DiVA, id: diva2:1509514
Konferanse
2020 IEEE Radar Conference (RadarConf20), Florence, Italy, 21-25 Sept., 2020
Forskningsfinansiär
Vinnova, 2018-01929Tilgjengelig fra: 2020-12-14 Laget: 2020-12-14 Sist oppdatert: 2020-12-14bibliografisk kontrollert

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Nilsson, Emil

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