Results 171 to 180 of about 125,464,374 (223)

A Practical Case of Monitoring Older Adults Using mmWave Radar and UWB. [PDF]

open access: yesSensors (Basel)
García-Gutiérrez G   +5 more
europepmc   +1 more source

Simulation of NLOS (non-line-of-sight) 3D imaging system

AOPC 2017: Laser Components, Systems, and Applications, 2017
This passage studies on theory and scene simulation of NLOS imaging. Based on math and physical properties, a simulation platform is built for a NLOS imaging system, including a femtosecond laser, a scanning galvo system, a lambertian surface, several hidden scenes, an ultrafast photodetector to transfer the intensity of laser echo signal to voltage ...
Xiuqin Su
exaly   +2 more sources

An evaluation of UWB localization under non line-of-sight (NLOS) propagation

2008 3rd International Symposium on Wireless Pervasive Computing, 2008
In this paper we evaluate the statistical performances of the association of a low-complexity of the time of arrival (TOA) estimation algorithm and the location estimation algorithm in a non line-of-sight (NLOS) indoor environment. For that, we choose the time hopping (TH) code and pulse amplitude modulation (PAM) for ultra wideband (UWB) symbols and ...
Genevieve Baudoin
exaly   +2 more sources

Detection methodologies to overcome Non line of Sight (NLOS) in Adhoc Networks: A Survey

2019 International Conference on Computer Communication and Informatics (ICCCI), 2019
In Vehicular Ad-hoc networks (VANETs) one of the pioneer applications is exchange of emergency messages to identify the location information of the emergency and nonemergency vehicles. But, the presence of obstacles like building infrastructure, trucks and other environmental factors can create Non Line Of Sight (NLOS) which prevents the direct ...
R Kaviarasan, A Amuthan
exaly   +2 more sources

A simulation model of back-projection based non-line-of-sight imaging (NLOS) for resolution analysis

International Conference on Signal Image Processing and Communication (ICSIPC 2021), 2021
The problem to image around a corner for objects that are invisible from direct line-of-sight is intriguing as its solution may provide the basis for new methods in various fields. However, most current researches are based on back-projectionrelated methods, of which a quantitative analysis of resolution is missing.
exaly   +2 more sources

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