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TWEET: an envelope detection based broadband ultrasonic ranging system

Published: 31 October 2011 Publication History

Abstract

Fine-grained location information at long range can benefit many applications of embedded sensor networks and robotics. In this paper, we focus on range estimation - an important prerequisite for fine-grained localization - in the ultrasonic domain for both indoor and outdoor environments, and make three contributions. First, we evaluate the characteristics of broadband signals, and provide useful statistics in their design and engineering to achieve a good trade-off between range and accuracy. Second, to overcome the inaccuracy due to correlation sidelobes, we propose a signal detection technique that estimates the envelope of the correlated pulse using a simple least-square approximation approach, and undertake a simulation study to verify its ranging efficiency on linear chirps. Third, leveraging on the insights obtained from our initial study, we present the design and implementation of TWEET: a mote-based ultrasonic broadband ranging system based on linear chirps using the CSIRO Audio nodes, which comprises of a Fleck-3z mote along with audio codecs and a Blackfin DSP. Our evaluation results indicate that the system is precise enough to support source localization applications: a reliable operational range of 20m (outdoor) and an average accuracy of < 2 cm with a 95% confidence interval of 2 cm.

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Cited By

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  • (2020)NephalaiProceedings of the 26th Annual International Conference on Mobile Computing and Networking10.1145/3372224.3419193(1-12)Online publication date: 16-Apr-2020
  • (2017)Sparsity Based Efficient Cross-Correlation Techniques in Sensor NetworksIEEE Transactions on Mobile Computing10.1109/TMC.2016.260568916:7(2037-2050)Online publication date: 1-Jul-2017
  • (2016)Robust Acoustic Self-Localization of Mobile DevicesIEEE Transactions on Mobile Computing10.1109/TMC.2015.243927815:4(982-995)Online publication date: 1-Apr-2016
  • Show More Cited By

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    cover image ACM Conferences
    MSWiM '11: Proceedings of the 14th ACM international conference on Modeling, analysis and simulation of wireless and mobile systems
    October 2011
    462 pages
    ISBN:9781450308984
    DOI:10.1145/2068897
    Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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    Publication History

    Published: 31 October 2011

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    Author Tags

    1. envelope detection
    2. linear chirp
    3. ultrasonic ranging

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    Cited By

    View all
    • (2020)NephalaiProceedings of the 26th Annual International Conference on Mobile Computing and Networking10.1145/3372224.3419193(1-12)Online publication date: 16-Apr-2020
    • (2017)Sparsity Based Efficient Cross-Correlation Techniques in Sensor NetworksIEEE Transactions on Mobile Computing10.1109/TMC.2016.260568916:7(2037-2050)Online publication date: 1-Jul-2017
    • (2016)Robust Acoustic Self-Localization of Mobile DevicesIEEE Transactions on Mobile Computing10.1109/TMC.2015.243927815:4(982-995)Online publication date: 1-Apr-2016
    • (2013)Acoustical ranging techniques in embedded wireless sensor networked devicesACM Transactions on Sensor Networks10.1145/252998110:1(1-38)Online publication date: 6-Dec-2013
    • (2012)Efficient cross-correlation via sparse representation in sensor networksProceedings of the 11th international conference on Information Processing in Sensor Networks10.1145/2185677.2185680(13-24)Online publication date: 16-Apr-2012
    • (2012)Efficient cross-correlation via sparse representation in sensor networks2012 ACM/IEEE 11th International Conference on Information Processing in Sensor Networks (IPSN)10.1109/IPSN.2012.6920953(13-24)Online publication date: May-2012

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