Local positioning systems (LPSs) based on acoustic transducers (mainly ultrasonic) offer
accurate localization in indoor environments. However, their performance is commonly …

We present an efficient CDMA detection core suited for multiuser indoor acoustic
positioning. An ultrasonic multi-code despreader is proposed, allowing simultaneous …

Recently developed acoustic positioning systems operate in a code division multiple access
(CDMA) configuration, in which the ranging signals between the nodes are digitally …

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 …

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 …

This paper discusses a method of time reversal (TR) for target detection using a signal with a
higher signal-to-noise ratio (SNR) and higher resolution. To acquire a signal with a higher …

This paper presents three novel methods to efficiently generate and correlate sequence
pairs with three zero correlation zones in the sum of their aperiodic correlation functions …

Some archaeological excavations require the accurate determination of the provenance of
finds (three-dimensional location and orientation) for a subsequent spatial analysis. The …

In recent years, the development of advanced driver assistance systems (ADAS)–mainly
based on lidar and cameras–has considerably improved the safety of driving in urban …

In this paper, a new signal processing algorithm for ultrasonic sensory systems in airborne
transmission is presented. The proposal is based on a phased array (PA) where the …