Indoor localization using barely perceptible audio signals

• Type: Article in International Scientific Journal
• Date: 2016-07-29

Authors

Rui Esteves Araújo (Author) FEUP; Diamantino Freitas (Author) FEUP; João Moutinho (Author) FEUP

Journal

Title: U.Porto Journal of Engineering

Vol. 2 No. 3

Pages: 26-38

Publisher: Universidade do Porto. Faculdade de Engenharia

Indexing

Scopus - 0 Citations

Other information

Authenticus ID: P-00Q-3M8

DOI: 10.24840/2183-6493_002.002_0004

Abstract (EN): This paper presents a new approach to an audio-based indoor localization system. By using audio signals emitted by a public address sound system, mobile devices may globally localize themselves in an indoor environment where global navigation satellite systems are not viable or reliable. The use of data hiding techniques such as spread spectrum coding or echo hiding has allowed to convey information to a receiver avoiding people¿s perception of the added audio content. Results demonstrate a relatively quite good localization with centimetre accuracy and precision and successful data transmission using barely perceptible audio signals.

Language: English

Type (Professor's evaluation): Scientific