Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed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

How to cite: Schott, D.; 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. Preprints 2021, 2021060096 (doi: 10.20944/preprints202106.0096.v1). Schott, D.; 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. Preprints 2021, 2021060096 (doi: 10.20944/preprints202106.0096.v1).

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.

Subject Areas

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

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