Acoustic local positioning systems (ALPSs) are an interesting alternative for indoor
positioning due to certain advantages over other approaches, including their relatively high …

This paper presents an acoustic local positioning system (ALPS) suitable for indoor
positioning of portable devices such as smartphones or tablets, based on the transmission of …

This paper presents results from comparing different Wi-Fi fingerprinting algorithms on the
same private dataset. The algorithms where realized by independent teams in the frame of …

This work presents the CODEUS platform, which includes a simulation tool together with an
online experimental demonstrator to offer analysis and testing flexibility for researchers and …

The task of determining the physical coordinates of a target in indoor environments is still a
key factor for many applications, including people and robot navigation, user tracking …

In this paper, we present a 3-D ultrasonic measurement technique that uses direct sequence
spread spectrum (DSSS) with simultaneous multiple code-division multiple access (CDMA) …

Current ultrasonic Local Positioning Systems (LPS) based on an infrastructure of beacons
can provide centimeter-level accuracy employing the spread spectrum technique, which …

This paper presents the design of a novel receiver for a broadband ultrasonic Local
Positioning System (LPS). As in other devices based on matched filtering of the transmitted …

The availability of inertial navigation sensors in smartphones has facilitated the development
of pedestrian dead reckoning (PDR) models on a large scale. These models often consist of …

This paper presents an Acoustic Local Positioning System (ALPS) suitable for indoor
localization of mobile devices, based on the transmission of high frequency Code Division …