Results 21 to 30 of about 42,889 (286)

Software Defined Radio for GNSS Radio Frequency Interference Localization

open access: yesSensors, 2023
The use of radio direction finding techniques in order to identify and reject harmful interference has been a topic of discussion both past and present for signals in the GNSS bands.
Fred Taylor   +6 more
doaj   +1 more source

Filter bank based fractional delay filter implementation for widely accurate broadband steering vectors [PDF]

open access: yes, 2013
Applications such as broadband angle of arrival estimation require the implementation of accurate broadband steering vectors, which generally rely on fractional delay filter designs.
Alrmah, Mohamed Abubaker, Weiss, Stephan
core   +1 more source

Robust Directional Angle Estimation of Underwater Acoustic Sources Using a Marine Vehicle

open access: yesSensors, 2018
Acoustic source localization is used in many underwater applications. Acquiring an accurate directional angle for an acoustic source is crucial for source localization.
Jinwoo Choi   +4 more
doaj   +1 more source

Angle of arrival Fluctuations for Laser Beam Propagation through non Kolmogorov turbulence [PDF]

open access: yes, 2007
Atmospheric turbulence induces significant variation on the angle-of-arrival of laser beams used in free space laser communication. Angle-of-arrival fluctuations of an optical wave in the plane of the receiver aperture can be described in terms of the ...
Ferrero, Valter   +3 more
core   +1 more source

Maximum-Likelihood-Based Location, Orientation, Transmitted Power, and Antenna Beamwidth Estimator Utilizing the Angle-of-Arrival and Received Power for Spectrum Sharing at Millimeter Wave Bands

open access: yesIEEE Access, 2023
The fifth-generation (5G) system utilizing millimeter wave is available in Japan, but more bandwidth is demanded by the mobile phone operators to accommodate the demand for high data rate.
Panawit Hanpinitsak   +3 more
doaj   +1 more source

3D angle-of-arrival positioning using von Mises-Fisher distribution [PDF]

open access: yes, 2017
We propose modeling an angle-of-arrival (AOA) positioning measurement as a von Mises-Fisher (VMF) distributed unit vector instead of the conventional normally distributed azimuth and elevation measurements.
Ali-Löytty, Simo   +3 more
core   +2 more sources

Self-Localization via Circular Bluetooth 5.1 Antenna Array Receiver

open access: yesIEEE Access, 2023
Future telecommunications aim to be ubiquitous and efficient, as widely deployed connectivity will allow for a variety of edge/fog based services. Challenges are numerous, e.g., spectrum overuse, energy efficiency, latency and bandwidth, battery life and
Nuno Paulino, Luis M. Pessoa
doaj   +1 more source

Interferometer angle-of-arrival determination using precalculated phases [PDF]

open access: yes, 2017
Published online 1 SEP 2017A method has been developed to determine the angle of arrival (AoA) of incident radiation using precomputed lookup tables. The phase difference between two receiving antennas can be used to infer AoA as measured from the pair ...
Reid, I., Younger, J.
core   +1 more source

A Survey of Latest Wi-Fi Assisted Indoor Positioning on Different Principles

open access: yesSensors, 2023
As the location-based service (LBS) plays an increasingly important role in real life, the topic of positioning attracts more and more attention. Under different environments and principles, researchers have proposed a series of positioning schemes and ...
Jihan Dai   +4 more
doaj   +1 more source

Fast Joint Estimation of Time of Arrival and Angle of Arrival in Complex Multipath Environment Using OFDM

open access: yesIEEE Access, 2018
Joint time of arrival (TOA) and angle of arrival (AOA) estimation based on a uniform circle array (UCA) involves problems, including high computational complexity in the multi-dimensional spectral search method and lack of applicability in coherent ...
Haiyun Xu   +4 more
doaj   +1 more source

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