Simultaneous excitation systems for ultrasonic indoor positioning

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dc.contributor.authorKhyam, M. O.
dc.contributor.authorNoor-A-Rahim, Md.
dc.contributor.authorLi, X.
dc.contributor.authorJayasuriya, A.
dc.contributor.authorMahmud, M. A.
dc.contributor.authorOo, A. M. T.
dc.contributor.authorGe, S. S.
dc.contributor.funderNational Natural Science Foundation of Chinaen
dc.contributor.funderState Key Laboratory of Synthetical Automation for Process Industriesen
dc.date.accessioned2021-08-11T14:01:52Z
dc.date.available2021-08-11T14:01:52Z
dc.date.issued2020-07-03
dc.date.updated2021-08-11T13:43:49Z
dc.description.abstractThe ultrasonic technology is a tool for indoor positioning systems (IPSs) and has been extensively used in many applications. In ultrasonic IPSs (UIPSs), the use of a chirp signal (in which the frequency varies with time) is widespread due to its capability to obtain high-range resolution through its time-frequency characteristic. It also provides an opportunity to design effective waveform diversity which has always been the key to mitigating multiple-access interference (MAI) in multi-user UIPSs. To explore this, we analyze the chirp signal from the signal design perspective, with the goal of developing a precise and efficient UIPS for multi-user environments. To achieve this, three waveform diversity design schemes are proposed in which all the benefits of the classical chirp, such as high-range resolution, are retained while all the transmitters can transmit chirp signals simultaneously. In each scheme, a linear chirp is divided into two linear sub-chirps with diverse durations and/or bandwidths. This process is optimized by selecting the concatenated sub-chirps that generate a waveform which has a high-range resolution and relatively low interference in the same scheme. Initially, the effectiveness of the proposed schemes is evaluated for five simultaneous excitation signals using several metrics and experimental results are then presented for the ultrasonic indoor positioning.en
dc.description.sponsorshipNational Natural Science Foundation of China (Grant 61573097 and Grant 91748106); State Key Laboratory of Synthetical Automation for Process Industries (Key Laboratory of Automation of Process Industry (Grant PALN201704))en
dc.description.statusPeer revieweden
dc.description.versionAccepted Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationKhyam, M. O., Rahim, M. N. A., Li, X., Jayasuriya, A., Mahmud, M. A., Oo, A. M. T. and Ge, S. S. (2020) 'Simultaneous Excitation Systems for Ultrasonic Indoor Positioning', IEEE Sensors Journal, 20(22), pp. 13716-13725. doi: 10.1109/JSEN.2020.3006930en
dc.identifier.doi10.1109/JSEN.2020.3006930en
dc.identifier.endpage13725en
dc.identifier.issn1530-437X
dc.identifier.journaltitleIEEE Sensors Journalen
dc.identifier.startpage13716en
dc.identifier.urihttps://hdl.handle.net/10468/11726
dc.identifier.volume20en
dc.language.isoenen
dc.publisherIEEEen
dc.relation.urihttps://ieeexplore.ieee.org/document/9152168
dc.rights© 2020 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.en
dc.subjectChirpen
dc.subjectWaveform designen
dc.subjectMultiple-access interferenceen
dc.subjectUltrasonic indoor positioningen
dc.subjectChirpen
dc.subjectAcousticsen
dc.subjectCorrelationen
dc.subjectBandwidthen
dc.subjectTime-frequency analysisen
dc.subjectOptical transmittersen
dc.titleSimultaneous excitation systems for ultrasonic indoor positioningen
dc.typeArticle (peer-reviewed)en
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