Search results
22 mar 2021 · How UWB Works: Once two devices having UWB enabled placed near each other and start ranging. Ranging can be also be considered as calculating the time of flight between the two devices. UWB was also known as pulse radio in early times.
UWB is an IEEE 802.15.4a/z standard technology optimized for secure micro-location-based applications. It enables distance and location to be calculated indoors or outdoors with unprecedented accuracy – within a few centimeters – by measuring the time it takes radio signals to travel between devices. Along with centimeter-level
UWB communication is achieved by sending ultra-short, time-domain pulses in predefined bursts and sequences to achieve different functionalities. A single pulse can be less than 1ns long, which results in a very large bandwidth in the frequency domain.
This chapter provides a comprehensive overview of ultra-wideband communications, starting with its history and background. Next the dis-cussion turns to the concepts behind UWB technology, as well as its advantages and challenges in wireless communications.
UWB radar technology, offering readers a clear under-standing of its main characteristics and standards. • The survey categorizes and contrasts UWB radar ap-plications, providing an understanding across domains.
At a given total transmitted power, power is distributed over an extremely large bandwidth. In the time domain, the high resolvability due to ultra wide bandwidth can affect the receiver performance. Since the total power is distrib-uted over many multipath components, the power on each path might be very low [1].
21 wrz 2013 · At the Institute of Geodesy of TU Darmstadt, a high-resolution UWB positioning system (UWB-ILPS; ILPS, indoor local positioning systems) based on trilateration principle has been developed to ...
