Results 31 to 40 of about 42,058 (273)
Sensors, 2021 An angle estimation algorithm for tracking indoor moving targets with WiFi is proposed. First, phase calibration and static path elimination are proposed and performed on the collected channel state information signals from different antennas.
Liping Tian +3 more
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
Performance Analysis for AOA-Based Localization Under Millimeter-Wave Wireless Networks
IEEE Access, 2022 Millimeter-Wave (mmWave) communication is a promising solution for achieving high data rate and low latency in 5G wireless networks. Since directional beamforming and antenna arrays are exploited in the mmWave networks, accurate angle-of-arrival (AOA ...
Jiajun He, Young Jin Chun
doaj +1 more source
Cooperative positioning using angle of arrival and time of arrival [PDF]
, 2014 Localization has been one of the most highly researched topics in wireless communications in the past decade. Localization of wireless nodes can be achieved using a variety of techniques, in which range measurement and angle measurement are most commonly
Kemp, AH, Khan, MW, Salman, N
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
Performance of Angle of Arrival Detection Using MUSIC Algorithm in Inter-Satellite Link
, 2018 An attitude of satellite is not always static, sometimes it moves randomly and the antenna pointing of satellite is harder to achieve line of sight communication to other satellite when it is outage by tumbling effect.
Muhammad, Cahya Budi +2 more
core +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
Joint received signal strength, angle-of-arrival, and time-of-flight positioning [PDF]
, 2019 This paper presents a software positioning framework that is able to jointly use measured values of three parameters: the received signal strength, the angle-of-arrival, and the time-of-flight of the wireless signals.
Deprez, Wouter +4 more
core +1 more source
Angle of arrival Fluctuations for Laser Beam Propagation through non Kolmogorov turbulence [PDF]
, 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
Time after time – circadian clocks through the lens of oscillator theory
FEBS Letters, EarlyView.Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo +2 more
wiley +1 more source