Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Comparison of Direct Intersection and Sonogram Methods for Acoustic Indoor Localization of Persons

Version 1 : Received: 1 June 2021 / Approved: 3 June 2021 / Online: 3 June 2021 (09:57:13 CEST)

A peer-reviewed article of this Preprint also exists.

Schott, D.J.; Saphala, A.; Fischer, G.; Xiong, W.; Gabbrielli, A.; Bordoy, J.; Höflinger, F.; Fischer, K.; Schindelhauer, C.; Rupitsch, S.J. Comparison of Direct Intersection and Sonogram Methods for Acoustic Indoor Localization of Persons. Sensors 2021, 21, 4465. Schott, D.J.; Saphala, A.; Fischer, G.; Xiong, W.; Gabbrielli, A.; Bordoy, J.; Höflinger, F.; Fischer, K.; Schindelhauer, C.; Rupitsch, S.J. Comparison of Direct Intersection and Sonogram Methods for Acoustic Indoor Localization of Persons. Sensors 2021, 21, 4465.

Journal reference: Sensors 2021, 21, 4465
DOI: 10.3390/s21134465

Abstract

We discuss two methods to detect the presence and location of a person in a small-scale room and compare the performances. The first method is Direct Intersection, which determines a coordinate point based on the intersection of spheroids defined by observed distances of high-intensity reverberations. The second method, Sonogram analysis, overlays all channel’s room impulse responses to generate an intensity map for the observed environment. We demonstrate that the former method has lower computation complexity and higher accuracy for small numbers of channels, while the latter performs more robustly.

Keywords

Presence detection; passive localization; room impulse response; acoustic localization; indoor localization

Subject

ENGINEERING, Automotive Engineering

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