Coexistence Between Ultra-Wideband Radio and Narrow-Band Wireless LAN Communication Systems—Part I: Modeling and Measurement of UWB Radio Signals in Frequency and Time

2009 ◽  
Vol 51 (2) ◽  
pp. 372-381 ◽  
Author(s):  
Giuliano Manzi ◽  
Mauro Feliziani ◽  
Pierre A. Beeckman ◽  
Nico van Dijk
Keyword(s):  
Wireless Lan ◽  
Communication Systems ◽  
Narrow Band ◽  
Ultra Wideband ◽  
Radio Signals ◽  
Uwb Radio ◽  
Wideband Radio

UWB and MEMS Based Indoor Navigation

2008 ◽  
Vol 61 (3) ◽  
pp. 369-384 ◽  
Author(s):  
Sylvain Pittet ◽  
Valérie Renaudin ◽  
Bertrand Merminod ◽  
Michel Kasser
Keyword(s):  
Indoor Navigation ◽  
Ultra Wideband ◽  
Indoor Environments ◽  
Selection Methods ◽  
Pedestrian Navigation ◽  
Radio Signals ◽  
Uwb Radio ◽  
Mechanical Sensors ◽  
Inertial Measurements ◽  
Reference Trajectories

Thanks to its physical characteristics, Ultra-wideband (UWB) is one of the most promising technologies for indoor pedestrian navigation. UWB radio localisation systems however experience multipath phenomena that decrease the precision and the reliability of the user's location. To cope with complex indoor environments, UWB radio signals are coupled with inertial measurements from Micro Electro Mechanical Sensors (MEMS) in an extended Kalman filter. Improved performances of the filter are presented and compared with reference trajectories and with pure inertial solutions. Only specific selection methods enable this improvement by detecting and removing outliers in the raw localisation data.

scholarly journals Ultra-Wideband Angle of Arrival Estimation Based on Angle-Dependent Antenna Transfer Function

Sensors ◽  
2019 ◽  
Vol 19 (20) ◽  
pp. 4466 ◽  
Author(s):  
Anton Ledergerber ◽  
Raffaello D’Andrea
Keyword(s):  
Indoor Localization ◽  
Time Of Flight ◽  
Impulse Response Function ◽  
Ultra Wideband ◽  
Angle Of Arrival ◽  
High Data ◽  
Large Bandwidth ◽  
Radar Systems ◽  
Radio Signals ◽  
Wideband Radio

Ultra-wideband radio signals are used in communication, indoor localization and radar systems, due to the high data rates, the high resilience to fading and the fine temporal resolution that can be achieved with a large bandwidth. This paper introduces a new method to estimate the angle of arrival of ultra-wideband radio signals with which existing time-of-flight based localization and radar systems can be augmented at no additional hardware cost. The method does not require multiple transmitter or receiver antennas, or relative motion between transmitter and receiver. Instead, it is solely based on the angle-dependent impulse response function of ultra-wideband antennas. Datasets on which the method is evaluated are publicly available. The method is further applied to a localization problem and it is shown how a robot can self-localize solely based on these angle of arrival estimates, and how they can be combined with time-of-flight measurements. Even though existing angle of arrival techniques that use multiple antennas show better accuracy, the method presented herein looks promising enough to be developed further and could potentially lead to electronically and mechanically simpler angle of arrival estimation technology.

scholarly journals Ultra-Wideband Radio Signals Distribution in FTTH Networks

2008 ◽  
Vol 20 (11) ◽  
pp. 945-947 ◽  
Author(s):  
R. Llorente ◽  
T. Alves ◽  
M. Morant ◽  
M. Beltran ◽  
J. Perez ◽  
...  
Keyword(s):  
Ultra Wideband ◽  
Radio Signals ◽  
Wideband Radio

Non-Line-of-Sight Identification for Indoor Positioning Using Ultra-WideBand Radio Signals

Navigation ◽  
2013 ◽  
Vol 60 (2) ◽  
pp. 97-111 ◽  
Author(s):  
Junlin Yan ◽  
Christian C. J. M. Tiberius ◽  
Giovanni Bellusci ◽  
Gerard J. M. Janssen
Keyword(s):  
Indoor Positioning ◽  
Ultra Wideband ◽  
Line Of Sight ◽  
Radio Signals ◽  
Wideband Radio ◽  
Non Line Of Sight
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