Results 91 to 100 of about 284,216 (291)
Angle-of-Arrival Measurement System Using Double RF Modulation Technique
IEEE Photonics Journal, 2019 A new technique for determining the angle of arrival (AoA) of an RF signal is presented. It is based on a cascaded modulator structure, where continuous wave light from an optical source is modulated by an incoming RF signal twice.
Hao Chen, Erwin Hoi Wing Chan
doaj +1 more source
Localization using Angle-of-Arrival (AoA) Triangulation
Proceedings of the International Workshop on Environmental Sensing Systems for Smart CitiesIndoor localization is a long-standing challenge in mobile computing, with significant implications for enabling location-aware and intelligent applications within smart environments such as homes, offices, and retail spaces. As AI assistants such as Amazon Alexa and Google Nest become increasingly pervasive, microphone-equipped devices are emerging as
openaire +2 more sources
Advanced Engineering Materials, EarlyView.The release of foulers from protective marine coatings is determined by several interrelated material properties, including the strength of Young's modulus, the flexibility of chain segments, the surface free energy, and the magnitude of hydrodynamic stress.
Johann C. Schaal +2 more
wiley +1 more source
Sensors, 2018 A constrained least-squares (CLS) 3D source localization method is presented for acoustic sensor networks with sensor position errors. The proposed approach uses angles of arrivals (AOAs) and gain ratios of arrival (GROAs) measured simultaneously at each
Ji-An Luo +4 more
doaj +1 more source
Angle-of-arrival determination using pre-calculated phase differences [PDF]
, 2017 15th MST Radar WorkshopSession M1: Radar hardware, signal processing, quality control for coherent and incoherent radarsMay 29 (Mon), NIPR ...
core +1 more source
Event Weighted Tests for Detecting Periodicity in Photon Arrival Times
, 2007 This paper treats the problem of detecting periodicity in a sequence of photon arrival times, which occurs, for example, in attempting to detect gamma-ray pulsars. A particular focus is on how auxiliary information, typically source intensity, background
Bas Kleijn +5 more
core +1 more source
Innovating Aircraft Repair Processes: The Role of Digitalization in Sustainability
Advanced Engineering Materials, EarlyView.This research explores how digitalization—by storing detailed non‐destructive testing data in structured DICONDE databases and creating a standard data model of the component—innovates aviation maintenance and repair processes. Coupled with a developed state‐based simulation model, it enables data‐driven, sustainable repair strategies that reduce waste,
Johanna Aigner +3 more
wiley +1 more source
Effects of spacecraft reflections on RF interferometer position location accuracy [PDF]
This report describes one of three study tasks related to the application of an RF interferometer aboard a low-orbiting spacecraft to determine the location of ground-based transmitters.
Wallace, R. G., Ward, F. C.
core +1 more source
Experimental confirmation of long-memory correlations in star-wander data
, 2014 In this letter we have analyzed the temporal correlations of the angle-of-arrival fluctuations of stellar images. Experimentally measured data were carefully examined by implementing multifractal detrended fluctuation analysis.
Funes, Gustavo +3 more
core +1 more source
Advanced Engineering Materials, EarlyView.This study explores the lightweight potential of laser additive‐manufactured NiTi triply periodic minimal surface sheet lattices. It systematically investigates the effects of relative density and unit cell size on surface quality, deformation recovery, compression behavior, and energy absorption.
Haoming Mo +3 more
wiley +1 more source