Simultaneous excitation systems for ultrasonic indoor positioning

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dc.contributor.author Khyam, M. O.
dc.contributor.author Noor-A-Rahim, Md.
dc.contributor.author Li, X.
dc.contributor.author Jayasuriya, A.
dc.contributor.author Mahmud, M. A.
dc.contributor.author Oo, A. M. T.
dc.contributor.author Ge, S. S.
dc.date.accessioned 2021-08-11T14:01:52Z
dc.date.available 2021-08-11T14:01:52Z
dc.date.issued 2020-07-03
dc.identifier.citation Khyam, 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.2020.3006930 en
dc.identifier.volume 20 en
dc.identifier.startpage 13716 en
dc.identifier.endpage 13725 en
dc.identifier.issn 1530-437X
dc.identifier.uri http://hdl.handle.net/10468/11726
dc.identifier.doi 10.1109/JSEN.2020.3006930 en
dc.description.abstract The 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.sponsorship National 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.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher IEEE en
dc.relation.uri https://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.subject Chirp en
dc.subject Waveform design en
dc.subject Multiple-access interference en
dc.subject Ultrasonic indoor positioning en
dc.subject Chirp en
dc.subject Acoustics en
dc.subject Correlation en
dc.subject Bandwidth en
dc.subject Time-frequency analysis en
dc.subject Optical transmitters en
dc.title Simultaneous excitation systems for ultrasonic indoor positioning en
dc.type Article (peer-reviewed) en
dc.internal.authorcontactother Md Noor-A-Rahim, Computer Science, University College Cork, Cork, Ireland. +353-21-490-3000 Email: md.noorarahim@ucc.ie en
dc.internal.availability Full text available en
dc.date.updated 2021-08-11T13:43:49Z
dc.description.version Accepted Version en
dc.internal.rssid 549751248
dc.internal.wokid WOS:000579360400060
dc.contributor.funder National Natural Science Foundation of China en
dc.contributor.funder State Key Laboratory of Synthetical Automation for Process Industries en
dc.description.status Peer reviewed en
dc.identifier.journaltitle IEEE Sensors Journal en
dc.internal.copyrightchecked Yes
dc.internal.licenseacceptance Yes en
dc.internal.IRISemailaddress md.noorarahim@ucc.ie en


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