Ultrasonic ranging has been widely used in automobiles, unmanned aerial vehicles (UAVs),
robots and other fields. With the appearance of micromachined ultrasonic transducers …

Estimating the position of mobile devices with high accuracy in indoor environments is of
interest across a wide range of applications. Many methods and technologies have been …

The Second Edition of the bestselling Measurement, Instrumentation, and Sensors
Handbook brings together all aspects of the design and implementation of measurement …

This paper describes the development and implementation of a robust high-accuracy
ultrasonic indoor positioning system (UIPS). The UIPS consists of several wireless ultrasonic …

This new edition of the bestselling Measurement, Instrumentation, and Sensors Handbook
brings together all aspects of the design and implementation of measurement …

This paper presents a novel reference-free ultrasonic indoor location system. Unlike most
previous proposals, the mobile device (MD) determines its own position based only on …

Indoor positioning of objects and people is becoming of great importance in the Internet of
Things (IoT), in-home automation, and navigation in malls, airports, or very large buildings …

Positioning systems have become increasingly popular in the last decade for location-based
services, such as navigation, and asset tracking and management. As opposed to outdoor …

Acoustic tomography is a technique widely used in nonintrusive temperature measurement.
The time of flight (TOF) of acoustic waves can be used to estimate the temperatures of a …

In ultrasonic positioning systems (UPSs) chirp waveforms have attracted much attention due
to its high range resolution. However, the multiple-access schemes for the chirp-based UPS …