Results 71 to 80 of about 4,643 (194)

Passive Automatic Identification System for Maritime Surveillance [PDF]

, 2011
This work describes the main achievements in the Passive AIS (P-AIS) project stage. The extensive literature research in the second chapter concludes performing additional in-situ experiments to estimate reliable target RCS and clutter reflectivity ...
BROUSSOLLE JOAN, FORTUNY GUASCH Joaquim, GIULIANI RAIMONDO, KYOVTOROV VLADIMIR, TARCHI Dario, VESPE MICHELE   +5 more
core   +1 more source

An Optically Transparent Transmissive Metasurface for User‐Defined Broadband Electromagnetic Illusion Generation

Small Structures, Volume 6, Issue 12, December 2025.
This work presents a transparent transmissive metasurface (TTM), designed using a conditional generative adversarial network to achieve broadband electromagnetic illusions. The proposed TTM ensures high optical transparency while precisely manipulating electromagnetic waves, demonstrating effectiveness in practical applications such as camouflage ...
Peixuan Zhu, Huan Lu, Haoran Han, Rongrong Zhu, Wei Zhou, Shiqi Zhu, Bin Zheng, Hongsheng Chen   +7 more
wiley   +1 more source

Sequential Multi-Sensor JPDA for Target Tracking in Passive Multi-Static Radar With Range and Doppler Measurements

IEEE Access, 2019
Target tracking in passive multi-static radar (PMSR) with bistatic range and Doppler frequency measurements from multiple transmit-receive pairs is gaining increasing interest.
Xiaoyong Lyu, Jun Wang
doaj   +1 more source

A Passive Radar System for Monitoring of Coastal Areas Ship Traffic Using Satellite Illumination Signals

Известия высших учебных заведений России: Радиоэлектроника, 2020
Introduction. Increasing requirements for improving of information systems for ensuring navigation safety in coastal areas of marine waters determine the search of new engineering and scientific solutions.
Nguyen Van Quan
doaj   +1 more source

Compressive detection of multiple targets in passive bistatic radar

IET Radar, Sonar & Navigation, 2023
The problem of compressive detection of multiple targets in a passive bistatic radar system consisting of one illuminator of opportunity and one receiver is considered.
Junhu Ma, Xi Rui
doaj   +1 more source

First results of a GNSS-R experiment from a stratospheric balloon over boreal forests [PDF]

, 2015
The empirical results of a global navigation satellite systems reflectometry (GNSS-R) experiment onboard the Balloon EXperiments for University Students (BEXUS) 17 stratospheric balloon performed north of Sweden over boreal forests show that the power of
Camps Carmona, Adriano José, Carreño Luengo, Hugo, Forte Veliz, Giuseppe Francesco, Querol Borràs, Jorge   +3 more
core   +2 more sources

Radar Polarimetry in Glaciology: Theory, Measurement Techniques, and Scientific Applications for Investigating the Anisotropy of Ice Masses

Reviews of Geophysics, Volume 63, Issue 4, December 2025.
Abstract Dielectric anisotropy in ice alters the propagation of polarized radio waves, so polarimetric radar sounding can be used to survey anisotropic properties of ice masses. Ice anisotropy is either intrinsic, associated with ice‐crystal orientation fabric (COF), or extrinsic, associated with material heterogeneity, such as bubbles, fractures, and ...
Benjamin H. Hills, T. J. Young, David A. Lilien, Esther Babcock, Nicole Bienert, Donald Blankenship, John Bradford, Giancorrado Brighi, Alex Brisbourne, Jørgen Dall, Reinhard Drews, Olaf Eisen, M. Reza Ershadi, Tamara A. Gerber, Nicholas Holschuh, Daniela Jansen, Thomas M. Jordan, Nanna B. Karlsson, Jilu Li, Carlos Martín, Kenichi Matsuoka, Daniel May, Falk M. Oraschewski, John Paden, Nicholas M. Rathmann, Neil Ross, Dustin M. Schroeder, Martin Siegert, Matthew R. Siegfried, Emma Smith, Ole Zeising   +30 more
wiley   +1 more source

Statistical Analysis of Bistatic Radar Ground Clutter for Different German Rural Environments

Sensors, 2020
This article presents the statistical analysis of bistatic radar rural ground clutter for different terrain types under low grazing angles. Compared to most state-of-the-art analysis, we present country-specific clutter analysis for subgroups of rural ...
Michael Kohler, Daniel W. O’Hagan, Matthias Weiss, David Wegner, Josef Worms, Oliver Bringmann   +5 more
doaj   +1 more source

Wind direction signatures in GNSS-R observables from space [PDF]

, 2018
Peer ReviewedPostprint (published ...
Camps Carmona, Adriano José, Guan, Dongliang, Hyuk, Park, Onrubia Ibáñez, Raúl, Pascual Biosca, Daniel, Querol Borràs, Jorge, Wang, Yong   +6 more
core   +2 more sources

Large‐Scale Topographic Changes at Erupting Volcanoes Measured by the TanDEM‐X Digital Change Map

Earth and Space Science, Volume 12, Issue 11, November 2025.
Abstract Volcanic eruptions cause large‐scale topographic changes, through the emplacement of lava flows and lava domes, the formation of craters and calderas, and thick ash and pyroclastic deposits. Here we analyze the TanDEM‐X Digital Change Map (DCM), which compares the DEM produced during 2010–2015 with satellite acquisitions collected in 2016–2022.
Rebecca Edwards, Juliet Biggs
wiley   +1 more source