Results 61 to 70 of about 151,933 (217)

Characterization of Mass Wasting Events on Lunar Maria Using Mini‐RF Radar Observations

Journal of Geophysical Research: Planets, Volume 131, Issue 5, May 2026.
Abstract Evidence of mass wasting has been observed on the Moon since at least the Apollo era. Surface features indicative of mass wasting processes are traditionally characterized geomorphologically using visible images. In this study, we aim to better understand mass wasting features via their radar properties, which can provide insights into the ...
S. L. Pérez‐Cortés, A. M. Bramson, E. G. Rivera‐Valentín, C. A. Nypaver, G. W. Patterson, A. K. Virkki, P. A. Taylor, R. Melikyan   +7 more
wiley   +1 more source

Impact of oscillator noise in bistatic and multistatic SAR [PDF]

Proceedings. 2005 IEEE International Geoscience and Remote Sensing Symposium, 2005. IGARSS '05., 2005
This paper addresses the impact of limited oscillator stability in bi- and multistatic SAR. Oscillator noise deserves special attention in distributed SAR systems, since there is no cancellation of low frequency phase errors as in a monostatic SAR, where the same oscillator signal is used for modulation and demodulation.
Gerhard Krieger, Marc Rodriguez-Cassola, Marwan Younis, Robert Metzig   +3 more
openaire   +4 more sources

Preservation of Historically and Scientifically Important Geospatial Data From Venus

Earth and Space Science, Volume 13, Issue 3, March 2026.
Abstract A large volume of scientifically and historically important data from the early exploration of Venus is not widely available to researchers. Our work is focused on ameliorating this problem with the archival of geospatial data including radar, topography, and radiometry.
T. J. Austin, J. G. O'Rourke, D. M. Nelson   +2 more
wiley   +1 more source

Bistatic SAR Target Recognition Using Transferred Monostatic Knowledge and Cross-Domain Feature Fusion

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Bistatic synthetic aperture radar (SAR) systems offer advantages for target recognition but suffer from severe data scarcity, particularly for maritime targets, which hinders the development of data-driven deep learning methods.
Mingqing Han, Bing Sun, Zhirong Men, Yiheng Zhou, Yihang Zhi   +4 more
doaj   +1 more source

Geosynchronous Spaceborne-Airborne Bistatic Moving Target Indication System: Performance Analysis and Configuration Design

Remote Sensing, 2020
Geosynchronous spaceborne-airborne bistatic synthetic aperture radar (GEO SA-BSAR), consisting of GEO transmitter and airborne receiver, has stable coverage for a long time and benefits moving target detection.
Xichao Dong, Chang Cui, Yuanhao Li, Cheng Hu   +3 more
doaj   +1 more source

Mining Deformation Monitoring Based on Lutan-1 Monostatic and Bistatic Data

Remote Sensing, 2023
Coal mining leads to surface subsidence, landslides, soil erosion and other problems that seriously threaten the life and property safety of residents in mining areas, and it is urgent to obtain mining subsidence information using high-frequency, high ...
Yanan Ji, Xiang Zhang, Tao Li, Hongdong Fan, Yaozong Xu, Peizhen Li, Zeming Tian   +6 more
doaj   +1 more source

Monitoring Flood Inundation Dynamics From Space

Reviews of Geophysics, Volume 64, Issue 1, March 2026.
Abstract With the increasing intensity and frequency of flood events worldwide, the need for accurate and timely inundation mapping has never been more critical. Large‐scale flood extent estimations are vital for coordinating effective disaster response, facilitating recovery, and building future resilience.
C. Campo, P. Tamagnone, S. Choy, T. D. Tran, G. J.‐P. Schumann, Y. Kuleshov   +5 more
wiley   +1 more source

New processing approach and results for bistatic TerraSAR-X/F-SAR spaceborne-airborne experiments [PDF]

, 2009
Following the success of the first bistatic spaceborne-airborne experiment between TerraSAR-X and FSAR carried out in November 2007, DLR has performed a second bistatic experiment in July 2008 with new challenging acquisitions.
Nottensteiner, Anton, Hajnsek, Irena, Horn, Ralf, Moreira, Alberto, Prats, Pau, Baumgartner, Stefan, Rodriguez-Cassola, Marc, Krieger, Gerhard   +7 more
core  

Advanced Interferometric SAR Techniques with TanDEM-X [PDF]

, 2008
TanDEM-X is an innovative mission with a TerraSAR-X add-on satellite for high-resolution singlepass SAR interferometry. The TanDEM-X mission has the primary objective of generating a consistent, global DEM with an unprecedented accuracy according to the ...
Hajnsek, Irena, Fiedler, Hauke, Hauke Fiedler, Krieger, Gerhard, Irena Hajnsek, Marwan Younis, Manfred Zink, Werner, Marian, Alberto Moreira, Zink, Manfred, Moreira, Alberto, Younis, Marwan, Gerhard Krieger, Marian Werner   +13 more
core   +1 more source

A Box Gradient‐Based Anisotropic Diffusion Framework for Polarimetric SAR Despeckling

Electronics Letters, Volume 62, Issue 1, January/December 2026.
This paper proposes a novel anisotropic diffusion framework for PolSAR despeckling, driven by a newly defined complex‐domain Box gradient. The method adaptively suppresses speckle while preserving structural and point‐target details, and experiments on real AIRSAR data confirm superior performance over existing filters.
Songli Han, Dawei Ren, Jian Yang
wiley   +1 more source