Interference Suppression Performance of Automotive UWB Radars Using Pseudo Random Sequences

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dc.contributor.authorPasya, Idnin
dc.contributor.authorKato, Hiroshi
dc.contributor.authorKobayashi, Takehiko
dc.coverage.issue4cs
dc.coverage.volume24cs
dc.date.accessioned2016-01-06T08:08:10Z
dc.date.available2016-01-06T08:08:10Z
dc.date.issued2015-12cs
dc.description.abstractUltra wideband (UWB) automotive radars have attracted attention from the viewpoint of reducing traffic accidents. The performance of automotive radars may be degraded by interference from nearby radars using the same frequency. In this study, a scenario where two cars pass each other on a road was considered. Considering the utilization of cross-polarization, the desired-to-undesired signal power ratio (DUR) was found to vary approximately from -10 to 30 dB. Different pseudo random sequences were employed for spectrum spreading the different radar signals to mitigate the interference effects. This paper evaluates the interference suppression provided by maximum length sequence (MLS) and Gold sequence (GS) through numerical simulations of the radar’s performance in terms of probability of false alarm and probability of detection. It was found that MLS and GS yielded nearly the same performance when the DUR is -10 dB (worst case); for example when fixing the probability of false alarm to 0.0001, the probabilities of detection were 0.964 and 0.946 respectively. The GS are more advantageous than MLS due to larger number of different sequences having the same length in GS than in MLS.en
dc.formattextcs
dc.format.extent932-939cs
dc.format.mimetypeapplication/pdfen
dc.identifier.citationRadioengineering. 2015 vol. 24, č. 4, s. 932-939. ISSN 1210-2512cs
dc.identifier.doi10.13164/re.2015.0932en
dc.identifier.issn1210-2512
dc.identifier.urihttp://hdl.handle.net/11012/51892
dc.language.isoencs
dc.publisherSpolečnost pro radioelektronické inženýrstvícs
dc.relation.ispartofRadioengineeringcs
dc.relation.urihttp://www.radioeng.cz/fulltexts/2015/15_04_0932_0939.pdfcs
dc.rightsCreative Commons Attribution 3.0 Unported Licenseen
dc.rights.accessopenAccessen
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/en
dc.subjectUWBen
dc.subjectradaren
dc.subjectmaximum length sequencesen
dc.subjectgold sequencesen
dc.subjectinterferenceen
dc.subjectdetection probabilityen
dc.titleInterference Suppression Performance of Automotive UWB Radars Using Pseudo Random Sequencesen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
eprints.affiliatedInstitution.facultyFakulta eletrotechniky a komunikačních technologiícs
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