Hybrid acoustic-RF systems offer excellent ranging accuracy, yet they typically come at a
power consumption that is too high to meet the energy constraints of mobile IoT nodes. We …

Advances in energy efficient electronic components create new opportunities for wireless
acoustic sensor networks. Such sensors can be deployed to localize unwanted and …

Smart pipes can be adopted as a solution to problems in water distribution systems.
However, the real application of such a system is usually constrained by power delivery. In …

The Steered Response Power with phase transform (SRP-PHAT) is one of the most
employed techniques for Direction of Arrival (DOA) estimation with microphone arrays due …

Indoor localization of unknown acoustic events with MEMS microphone arrays have a huge
potential in applications like home assisted living and surveillance. This article presents an …

An indoor, ultra low power, hybrid signaling localization system is proposed that can position
mobile devices with cm-accuracy. The concept is based on the hybrid Time Of Flight …

Transducer arrays combined with signal processing algorithms are called beamformers
when they transmit or receive energy in a focused direction. Beamformers are widely used in …

MEMS (Micro Electro Mechanical System) microphone array is the most commonly used
microphone array selection at this stage. However, in actual use, the microphones cannot …

The recent explosion in low-cost, low-power wireless microcontrollers, coupled with low-
power, robust MEMS sensors has opened up the opportunity to create new forms of low-cost …

Long range wireless connectivity opens the door for new IoT applications. Low energy
consumption is essential to enable long autonomy of devices powered by batteries or even …