Results 21 to 30 of about 378,510 (233)

Radiometric Performance of the TerraSAR-X Mission over More Than Ten Years of Operation

Remote Sensing, 2018
The TerraSAR-X mission, based on two satellites, has produced SAR data products of high quality for a number of scientific and commercial applications for more than ten years.
Marco Schwerdt, Kersten Schmidt, Patrick Klenk, Núria Tous Ramon, Daniel Rudolf, Sebastian Raab, Klaus Weidenhaupt, Jens Reimann, Manfred Zink   +8 more
doaj   +1 more source

Mitigation of Mutual Antenna Coupling Effects for Active Radar Targets in L-Band

Remote Sensing, 2021
In order to realize a compact L-band transponder design for the calibration of spaceborne synthetic aperture radar (SAR) systems, a novel antenna was developed by DLR.
Anna Maria Büchner, Klaus Weidenhaupt, Bernd Gabler, Markus Limbach, Marco Schwerdt   +4 more
doaj   +1 more source

TomoSAR Mapping of 3D Forest Structure: Contributions of L-Band Configurations

Remote Sensing, 2021
Synthetic Aperture Radar (SAR) measurements are unique for mapping forest 3D structure and its changes in time. Tomographic SAR (TomoSAR) configurations exploit this potential by reconstructing the 3D radar reflectivity.
Matteo Pardini, Victor Cazcarra-Bes, Konstantinos P. Papathanassiou   +2 more
doaj   +1 more source

Dual-Frequency Airborne SAR for Large Scale Mapping of Tidal Flats

Remote Sensing, 2020
Digital elevation models of tidal flats are a most valuable data source for the water management of coastal areas and need frequent updates to account for changes in sedimentation, erosion and identification of damages in building infrastructure.
Muriel Pinheiro, Joel Amao-Oliva, Rolf Scheiber, Marc Jaeger, Ralf Horn, Martin Keller, Jens Fischer, Andreas Reigber   +7 more
doaj   +1 more source

Retrieval of Firn Thickness by Means of Polarisation Phase Differences in L-Band SAR Data

Remote Sensing, 2021
The knowledge of glacier zones’ extent and their temporal variations is fundamental for the retrieval of surface mass balance of glaciers and ice sheets.
Giuseppe Parrella, Irena Hajnsek, Konstantinos P. Papathanassiou   +2 more
doaj   +1 more source

Performance Comparison of Reflector- and Planar-Antenna Based Digital Beam-Forming SAR

International Journal of Antennas and Propagation, 2009
The trend in the conception of future spaceborne radar remote sensing is clearly toward the use of digital beamforming techniques. These systems will comprise multiple digital channels, where the analog-to-digital converter is moved closer to the antenna.
Marwan Younis, Sigurd Huber, Anton Patyuchenko, Federica Bordoni, Gerhard Krieger   +4 more
doaj   +1 more source

SAW RFID Tag Spatial Division Multiple Access Based on 3D Reflector Response Localization Using a Wideband Holographic Approach

IEEE Journal of Microwaves, 2022
Surface acoustic wave (SAW) radio-frequency identification (RFID) has high potential for industrial applications, where automated identification and localization of assets represent the backbone of process controlling and logistics.
Pau Caldero, Matthias Gareis, Martin Vossiek   +2 more
doaj   +1 more source

Relationship of type III radio bursts with quasi-periodic pulsations in a solar flare [PDF]

, 2016
We studied a solar flare with pronounced quasi-periodic pulsations detected in the microwave, X-ray, and radio bands. We used correlation, Fourier, and wavelet analyses methods to examine the temporal fine structures and relationships between the time ...
Kashapova, L.K., Kupriyanova, E.G., Myagkova, I.N., Reid, H.A.S.   +3 more
core   +2 more sources

Hierarchical Bayesian Data Analysis in Radiometric SAR System Calibration: A Case Study on Transponder Calibration with RADARSAT-2 Data

Remote Sensing, 2013
A synthetic aperture radar (SAR) system requires external absolute calibration so that radiometric measurements can be exploited in numerous scientific and commercial applications.
Björn J. Döring, Kersten Schmidt, Matthias Jirousek, Daniel Rudolf, Jens Reimann, Sebastian Raab, John Walter Antony, Marco Schwerdt   +7 more
doaj   +1 more source

Microwave Heating of Water, Ice and Saline Solution: Molecular Dynamics Study

, 2006
In order to study the heating process of water by the microwaves of 2.5-20GHz frequencies, we have performed molecular dynamics simulations by adopting a non-polarized water model that have fixed point charges on rigid-body molecules.
Havriliak S., Horais G., Motohiko Tanaka, Motoyasu Sato, Stadler A.   +4 more
core   +1 more source