2015/12/16 by Seyed-Mohsen Moosavi-Dezfooli, Moosavi-Dezfooli, Seyed-Mohsen, Yvonne-Anne Pignolet +3
Computer Science · Engineering · #C.2.1 #FOS: Computer and information sciences #Indoor and Outdoor Localization Technologies #Networking and Internet Architecture (cs.NI) #Sound (cs.SD) #Speech and Audio Processing #Underwater Vehicles and Communication Systems
paper · pdf · doi:10.48550/arxiv.1512.05103
openalex publication_date 2015/12/16 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
In this paper, we present an acoustic localization system for multiple devices. In contrast to systems which localise a device relative to one or several anchor points, we focus on the joint localisation of several devices relative to each other. We present a prototype of our system on off-the-shelf smartphones. No user interaction is required, the phones emit acoustic pulses according to a precomputed schedule. Using the elapsed time between two times of arrivals (ETOA) method with sample counting, distances between the devices are estimated. These, possibly incomplete, distances are the input to an efficient and robust multi-dimensional scaling algorithm returning a position for each phone. We evaluated our system in real-world scenarios, achieving error margins of 15 cm in an office environment.