Results 11 to 20 of about 4,630 (180)

Development and Validation of a Multipath Mitigation Technique Using Multi-Correlator Structures

open access: yesNavigation, 2023
Multipath propagation is a major source of error in global navigation satellite systems (GNSSs), especially in urban environments. This is because conventional GNSS receivers can provide biased range estimates that lead to positioning errors.
Christian Siebert   +2 more
doaj   +1 more source

Channel Measurement and Modeling Prototype for IEEE 802.22-Based Regional Area Networks

open access: yesIEEE Access, 2021
During the design and development of a reliable transceiver, its performance and robustness are evaluated using channel models that simulate the propagation channel characteristics in a real-world environment.
Ruiting Ouyang   +3 more
doaj   +1 more source

Propagation of Multipath Components at an Urban Intersection [PDF]

open access: yes2015 IEEE 82nd Vehicular Technology Conference (VTC2015-Fall), 2015
Urban intersections constitute an important safety-critical scenario for vehicle-to-vehicle communication. Based on measurements, this paper presents detailed investigations of the radio wave propagation processes in a typical urban intersection.
Kim Mahler   +4 more
openaire   +1 more source

A spectrum-of-spectrum filtering method to extract direct and multipath arrivals from simulations and measurements

open access: yesMethodsX, 2023
In measurements and numerical modelling of wave propagation, undesired interference between direct and multipath arrivals can be reduced using Fourier-based signal processing methods.
Eivind Nag Mosland   +2 more
doaj   +1 more source

Measurement and Statistical Analysis of Distinguishable Multipaths in Underground Tunnels

open access: yesInternational Journal of Antennas and Propagation, 2020
Compared with the line-of-sight (LOS) condition, the multipath effect is more serious in the non-line-of-sight (NLOS) condition. Therefore, the LOS and NLOS identification is necessary for the multipath analysis of signal propagation.
Junchang Sun   +4 more
doaj   +1 more source

Exploiting Ultra-Wideband Channel Impulse Responses for Device-Free Localization

open access: yesSensors, 2022
In radio-frequency (RF)-based device-free localization (DFL), the number of sensors acting as RF transmitters and receivers is crucial for accuracy and system costs.
Marco Cimdins   +3 more
doaj   +1 more source

Investigation of Time-Reversal Based Far-Field Wireless Power Transfer From Antenna Array in a Complex Environment

open access: yesIEEE Access, 2020
The performance of time-reversal (TR) based far-field wireless power transfer (WPT) from an antenna array in a complex propagation environment is investigated in comparison with conventional array-based beamforming (BF).
Hong Soo Park, Sun K. Hong
doaj   +1 more source

Minimum Delay Multipath Routing Based on TDMA for Underwater Acoustic Sensor Network

open access: yesInternational Journal of Distributed Sensor Networks, 2016
Multipath routing is an alternative routing technique, which uses redundant paths to deliver data from source to destination. Compared to single path routing protocols, it can address reliability, delay, and energy consumption issues.
Weigang Bai   +4 more
doaj   +1 more source

A design study on complexity reduced multipath mitigation [PDF]

open access: yesAdvances in Radio Science, 2012
Global navigation satellite systems, e.g. the current GPS and the future European Galileo system, are frequently used in car navigation systems or smart phones to determine the position of a user.
U. Wasenmüller   +5 more
doaj   +1 more source

Estimation of attenuation of wireless links in various environmental conditions [PDF]

open access: yesBiuletyn Wojskowej Akademii Technicznej, 2023
The article is devoted to the assessment of attenuation in wireless links in various environmentalconditions. A simplified damping estimation methodology based on the Floating-intercept (FI) modelis presented [1].
Tomasz Grasza
doaj   +1 more source

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