Results 71 to 80 of about 30,622 (235)

Spaceborne Reflector SAR Systems with Digital Beamforming

, 2012
Spaceborne Synthetic Aperture Radar (SAR) imaging enters an era where increasingly short revisit times, or large swath widths, respectively, and high spatial resolutions are requested.
Patyuchenko, Anton, Huber, Sigurd, Moreira, Alberto, Younis, Marwan, Krieger, Gerhard   +4 more
core   +1 more source

Buoy Observations of Ocean Swell Propagation Across the Pacific Ocean

Journal of Geophysical Research: Oceans, Volume 131, Issue 6, June 2026.
Abstract A network of more than 300 drifting wave buoys is used to study the propagation of ocean swell across the Pacific Ocean. Swell events are identified at buoys in the Equatorial region and then tracked along Great Circle propagation paths both forward and backward in time.
I. R. Young, A. Meucci, I. Houghton, C. Aguirre, A. Babanin, M. Banner, T. Durrant, K. Ewans, H. Jiang, Q. Liu, J. Portilla‐Yandun, P. Smit, A. Toffoli   +12 more
wiley   +1 more source

Geologically Recent Formation of Some Tesserae on Venus by Plains Deformation

Journal of Geophysical Research: Planets, Volume 131, Issue 6, June 2026.
Abstract Tessera is a pervasively deformed terrain type on Venus generally interpreted as the oldest preserved material on the surface. Large expanses of this terrain type are typically elevated and have been hypothesized to be felsic, perhaps analogous to Earth's continents and even to date from an era with a more Earth‐like climate earlier in Venus ...
Paul K. Byrne, Christian Klimczak, Kelsey T. Crane, Peter B. James, Richard C. Ghail, A. M. Celâl Şengör, Sean C. Solomon   +6 more
wiley   +1 more source

Fine Imaging Method of THz-ViSAR on Subaperture Range Migration Algorithm and Distinctive-Point Map Drift Algorithm

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Video synthetic aperture radar (SAR) is a new type of synthetic aperture radar. In order to achieve high imaging frame rate, the data collected by video SAR is divided into multiple units for imaging.
Xiaofan Li, Bin Deng, Qiang Fu, Hongqiang Wang, Jun Yi   +4 more
doaj   +1 more source

Application of Deep Learning and Rain‐On‐Grid Hydrodynamic Modeling for Catchment‐Scale Flood Forecasting in Guwahati, India

Journal of Flood Risk Management, Volume 19, Issue 2, June 2026.
ABSTRACT This study integrates deep learning‐based real‐time rainfall forecasting with hydrodynamic flood modeling to provide near real‐time predictions of urban flood inundation. The research focuses on urban Guwahati, a rapidly urbanizing city in Northeast India prone to recurrent pluvial flooding. A novel hybrid model, Multivariate Singular Spectrum
Shejule Priya Ashok, Sreeja Pekkat
wiley   +1 more source

Resolution Equation for SAR Systems Synthesizing Circular Aperture

IEEE Access
The resolution of a synthetic aperture radar (SAR) system depends not only on the operating frequency range of a radar but also on the geometry. A radar system operating at MHz frequencies facilitates SAR resolution to the meter (m) level with a linear ...
Viet T. Vu, Yevhen Ivanenko, Vanja Lindberg, Mats I. Pettersson   +3 more
doaj   +1 more source

Analysis of Security Imaging Method for Walking Human Screening With Single Channel Synthetic Aperture Radar

IEEE Access, 2019
In this paper, a security screening imaging method for walking human with single channel synthetic aperture radar (SAR) technology is proposed. According to the theory of SAR imaging, the imaging response for each single echo of the three dimensional (3D)
Shuliang Gui, Jin Li, Feng Zuo, Yiming Pi   +3 more
doaj   +1 more source

Performance Evaluation of Automated Flood Inundation Mapping Techniques Using Multi‐Temporal Sentinel‐1 SAR Data

Journal of Flood Risk Management, Volume 19, Issue 2, June 2026.
ABSTRACT In recent times, the development of algorithms to delineate water surface maps has significantly boosted flood monitoring and mitigation efforts by utilizing dual polarization, multi‐temporal Sentinel‐1 synthetic aperture radar (SAR) data. The Sentinel‐1 mission, with its global land monitoring capability, has been widely employed for SAR ...
Gautam Dadhich, Mukand Babel, Hiroyuki Miyazaki, Indrajit Pal, Nitin Kumar Tripathi, Salvatore G. P. Virdis   +5 more
wiley   +1 more source

Synthetic-Aperture Radar Radio-Frequency Interference Suppression Based on Regularized Optimization Feature Decomposition Network

Remote Sensing
Synthetic-aperture radar (SAR) can work in all weather conditions and at all times, and satellite-borne radar has the characteristics of short revisiting period and large imaging width.
Fuping Fang, Haoliang Li, Weize Meng, Dahai Dai, Shiqi Xing   +4 more
doaj   +1 more source

MIMO-SAR and the Orthogonality Confusion

, 2012
This paper reviews radar architectures that employ multiple transmit and multiple receive channels to improve the performance of synthetic aperture radar (SAR) systems.
A. Patyuchenko, Laskowski, Piotr, M. Villano, Bordoni, Federica, A. Moreira, Krieger, Gerhard, J. Kim, Kim, Junghyo, Lopez-Dekker, Paco, Patyuchenko, Anton, F. Bordoni, Huber, Sigurd, S. Huber, Moreira, Alberto, T. Romme, Younis, Marwan, G. Krieger, P. Lopez-Dekker, Villano, Michealangelo, M. Younis, Rommel, Tobias, P. Laskowski   +21 more
core   +1 more source