Results 51 to 60 of about 61,990 (319)
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
Structural biology of ferritin nanocages
FEBS Letters, EarlyView.Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley +1 more source
Radio Interferometric Angle of Arrival Estimation [PDF]
, 2010 Several localization algorithms exist for wireless sensor networks that use angle of arrival measurements to estimate node position. However, there are limited options for actually obtaining the angle of arrival using resource-constrained devices. In this paper, we describe a radio interferometric technique for determining bearings from an anchor node ...
Isaac Amundson +3 more
openaire +1 more source
Microwave Omnidirectional Angle-of-Arrival Measurement based on an Optical Ten-Port Receiver
Journal of Lightwave Technology, 2021 A photonics-based scheme to measure microwave omnidirectional angle-of-arrival (AOA) is proposed. In the proposed system, an optical carrier is split into two branches. In one branch, the optical carrier is frequency-shifted by an acousto-optic modulator
Yuanqi Yang +4 more
semanticscholar +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
Calpain small subunit homodimerization is robust and calcium‐independent
FEBS Letters, EarlyView.Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy +4 more
wiley +1 more source
International Journal of Distributed Sensor Networks, 2020 This article focuses on the evaluation of geometric dilution of precision for three-dimensional angle-of-arrival target localization in wireless sensor networks.
Jiao Zhang, Jianfeng Lu
doaj +1 more source
A Simple Photonic System for DFS and AOA Simultaneous Measurement
Photonics, 2022 A simple photonics-based dual-channel system is proposed to simultaneously measure the Doppler frequency shift (DFS) and angle of arrival (AOA) of microwave signals.
Xintong Li +5 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
Angle of Arrival Estimator Utilizing the Minimum Number of Omnidirectional Microphones
Journal of Marine Science and EngineeringIn sound signal processing, angle of arrival indicates the direction from which a propagating sound signal arrives at a point where multiple omnidirectional microphones are positioned.
Jonghoek Kim
semanticscholar +1 more source