Results 31 to 40 of about 284,216 (291)
Practical 3-D Beam Pattern Based Channel Modeling for Multi-Polarized Massive MIMO Systems
Sensors, 2018 In this paper, a practical non-stationary three-dimensional (3-D) channel models for massive multiple-input multiple-output (MIMO) systems, considering beam patterns for different antenna elements, is proposed.
Saeid Aghaeinezhadfirouzja +2 more
doaj +1 more source
Filter bank based fractional delay filter implementation for widely accurate broadband steering vectors [PDF]
, 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
Direct Position Determination of Multiple Radio Signals
EURASIP Journal on Advances in Signal Processing, 2005 The most common methods for position determination of radio signal emitters such as communications or radar transmitters are based on measuring a specified parameter such as angle of arrival (AOA) or time of arrival (TOA) of the signal.
Weiss Anthony J, Amar Alon
doaj +1 more source
RFID Localization Using Angle of Arrival Cluster Forming
International Journal of Distributed Sensor Networks, 2014 Radio Frequency IDentification (RFID) has been increasingly used to identify and track objects automatically. RFID has also been used to localize tagged objects.
Waleed Alsalih +2 more
doaj +1 more source
Broadband angle of arrival estimation methods in a polynomial matrix decomposition framework [PDF]
, 2013 A large family of broadband angle of arrival estimation algorithms are based on the coherent signal subspace (CSS) method, whereby focussing matrices appropriately align covariance matrices across narrowband frequency bins.
Alrmah, Mohamed +4 more
core +1 more source
Indoor positioning in 5G new radio: how it works, status quo of research, and the road ahead
ICT ExpressIn this paper, the architecture and mechanism of 5G New Radio indoor positioning schemes such as downlink time difference of arrival (DL-TDOA), uplink (UL) TDOA, multiple-cell round trip time (Multi-RTT), DL angle of departure, UL angle of arrival (AOA),
Jiaqi Li, Seung-Hoon Hwang
doaj +1 more source
Journal of King Saud University: Computer and Information Sciences, 2023 As COVID-19 is still spreading globally, the narrow ship space makes COVID-19 easier for the virus to infect ship passengers. Tracking close contacts remains an effective way to reduce the risk of virus transmission.
Qianfeng Lin +2 more
doaj +1 more source
Sensors, 2022 Determining the direction-of-arrival (DOA) of any signal of interest has long been of great interest to the wireless localization research community for military and civilian applications.
Chien-Bang Chen +6 more
doaj +1 more source
Angles of arrival of indoor multipath
Electronics Letters, 1992 Some preliminary results of the angles of arrival of multipath components in indoor radio channel measurements are reported. The results show that strong multipath components arrive at the receiver in various directions.
T. Lo, J. Litva
openaire +1 more source
A Simple Cross Correlation Switched Beam System (XSBS) for Angle of Arrival Estimation
IEEE Access, 2017 We propose a practical, simple and hardware friendly, yet novel and efficient, angle of arrival (AoA) estimation system. Our intuitive, two-phases cross-correlation-based system requires a switched beam antenna array with a single radio frequency ...
Ahmed Badawy +4 more
doaj +1 more source