Indoor Global Localisation in Anchor-based Systems using Audio Signals
Indoor Global Localisation in Anchor-based Systems using Audio Signals
- New search for: Moutinho, João
- New search for: Moutinho, João
- New search for: Freitas, Diamantino
- New search for: Esteves Araújo, Rui
This paper presents a method that allows mobile devices to be globally self-localised in indoor localisation systems by transmitting to them data from position reference anchors. The objective is to establish a reliable one-way down-link communication through signals used in the localisation process in a typically strong fading and multipath channel environment. This is accomplished by using signal processing techniques, including coding and forward error correction, to transmit data using a specific transmission control protocol. Experimental results, using audio as the signal between anchors and the mobile device, demonstrate successful data transmission in realistic scenarios like a common noisy and reverberant room. Spread spectrum noise-like masked signals 4·9 dB below background noise were sufficient to attain correct data reception at four metres distance between a loudspeaker anchor and a mobile device's microphone.
Document information
Indoor Global Localisation in Anchor-based Systems using Audio Signals
The journal of navigation ; 69 , 5
2016
Article (Journal)
English
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