Results 21 to 30 of about 968,312 (333)
Device-Free Counting via OFDM Signals of Opportunity [PDF]
2018 IEEE International Conference on Communications Workshops (ICC Workshops), 2018 Counting targets (people or things) within a monitored area is an important task in emerging wireless applications for smart environments, safety, and security. Counting via passive radars rely on signals of opportunity (i.e., signal already on air for other purposes) to detect and count device-free targets, which is preferable, in terms of privacy and
Stefania Bartoletti +2 more
openaire +2 more sources
PRN Sequence Estimation with a Self-Calibrating 40-Element Antenna Array
Navigation, 2023 This work explores the use of a low-cost global navigation satellite system (GNSS) antenna array including front-ends and a global navigation satellite system (GNSS) software receiver to receive signals of opportunity (SoO) whose pseudorandom noise (PRN)
Dominik Dötterböck +4 more
doaj +1 more source
Improving Inertial Pedestrian Dead-Reckoning by Detecting Unmodified Switched-on Lamps in Buildings
Sensors, 2014 This paper explores how inertial Pedestrian Dead-Reckoning (PDR) location systems can be improved with the use of a light sensor to measure the illumination gradients created when a person walks under ceiling-mounted unmodified indoor lights. The process
Antonio R. Jiménez +2 more
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Deep Learning Scene Recognition Method Based on Localization Enhancement
Sensors, 2018 With the rapid development of indoor localization in recent years; signals of opportunity have become a reliable and convenient source for indoor localization.
Wei Guo, Ran Wu, Yanhua Chen, Xinyan Zhu
doaj +1 more source
Spatial resolution in GNSS-R under coherent scattering [PDF]
, 2020 © 2019 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes,creating new ...
Camps Carmona, Adriano José
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Position Estimation in Mixed Indoor-Outdoor Environment Using Signals of Opportunity and Deep Learning Approach [PDF]
International Journal of Electronics and Telecommunications, 2022 To improve the user’s localization estimation in indoor and outdoor environment a novel radiolocalization system using deep learning dedicated to work both in indoor and outdoor environment is proposed.
Sebastian Urwan +3 more
doaj +1 more source
Sensitivity of GNSS-R spaceborne observations to soil moisture and vegetation [PDF]
, 2016 Global navigation satellite systems-reflectometry (GNSS-R) is an emerging remote sensing technique that makes use of navigation signals as signals of opportunity in a multistatic radar configuration, with as many transmitters as navigation satellites are
Camps Carmona, Adriano José +6 more
core +2 more sources
A Satellite Synthetic Aperture Radar Concept Using
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021 The spaceborne aperture radar (SAR) technique based on a combination of P-band signals of opportunity (SoOp) reflectometry with a sparse array of receivers at low earth orbits (LEOs) and transmit signals from the United States Navy's Mobile User ...
Simon H. Yueh +4 more
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Electromagnetic modeling of scattered signals of opportunity: Challenges and approaches [PDF]
URSI Radio Science Bulletin, 2020 he possibility of exploiting signals of opportunity such as navigation signals for remote-sensing applications has been the object of extensive scientific research. Over the years, the potential of this technique has been mainly investigated for wind scatterometry and sea-surface altimetry, resulting in mission concepts and prototypes currently in ...
Comite, Davide +3 more
openaire +2 more sources
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2022 In terms of the global coverage provided by global navigation satellite system (GNSS) signals, radar images of a large field-of-view can be obtained via passive synthetic aperture radar (SAR) using these signals of opportunity.
Chuan Huang +5 more
doaj +1 more source