Results 51 to 60 of about 462 (166)

Similar Liquid Composition and Surface State of Titan's Northern Lakes From Cassini Bistatic Radar Experiment

Geophysical Research Letters, Volume 52, Issue 22, 28 November 2025.
Abstract During the T119 bistatic radar (BSR) experiment, the Cassini spacecraft observed a collection of lakes in Titan's Northern Lake District. Specular reflections from liquid surfaces were clearly detected at X‐band ground‐based station DSS‐43 (Canberra), spaced out by sudden drops of power in correspondence to solid terrains.
Giancorrado Brighi, Valerio Poggiali, Marco Mastrogiuseppe, Marco Zannoni, Alexander G. Hayes, Paolo Tortora   +5 more
wiley   +1 more source

Raw Data Simulation Under Undulating Terrain for Bistatic SAR With Arbitrary Configuration

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Raw data simulation is very important for system parameter design, performance evaluation, and route planning of bistatic synthetic aperture radar (SAR).
Wenchao Li, Lei Wang, Dan Liu, Tianfu Chen, Zhongyu Li, Junjie Wu, Haiguang Yang, Jianyu Yang   +7 more
doaj   +1 more source

Focusing High Maneuvering Bistatic Forward-Looking SAR With Stationary Transmitter Using Extended Keystone Transform and Modified Frequency Nonlinear Chirp Scaling

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2022
This article presents an imaging solution for high maneuvering bistatic forward-looking SAR with stationary transmitter (STHM-BFSAR). In STHM-BFSAR configuration that the transmitter is mounted on a stationary platform in side-looking mode while the ...
Jiabao Ding, Yachao Li, Ming Li, Jiadong Wang   +3 more
doaj   +1 more source

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

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   +3 more sources

Lava Tube System Development Defined by Multispectral Imaging and InSAR: The Case of the 2024 Eruption of Fernandina Volcano (Galápagos)

Journal of Geophysical Research: Solid Earth, Volume 130, Issue 11, November 2025.
Abstract Lava tubes are subsurface conduits within a lava flow that feed its advance. Lava tube detection is important to understand lava flow dynamics and to mitigate geohazards. Here we use InSAR‐derived surface motion data, in combination with shortwave and thermal infrared imagery, to delineate a ∼14 km long lava tube system at Fernandina volcano ...
Alexis Hrysiewicz, Peter C. LaFemina, Andrew Bell, Federico Galetto, Silvia Vallejo, Benjamin Bernard, Eoghan P. Holohan   +6 more
wiley   +1 more source

Flood Mapping in a Complex Environment Using Bistatic TanDEM-X/TerraSAR-X InSAR Coherence

Remote Sensing, 2018
In this paper, we assess the flood mapping capabilities of the X-band Synthetic Aperture Radar (SAR) imagery acquired by the bistatic pair TanDEM-X/TerraSAR-X (TDX/TSX).
Chayma Chaabani, Marco Chini, Riadh Abdelfattah, Renaud Hostache, Karem Chokmani   +4 more
doaj   +1 more source

Unveiling the First Impressions of the Wide‐Swath Altimetry SWOT Mission Over the Ganga River, India

Geophysical Research Letters, Volume 52, Issue 19, 16 October 2025.
Abstract The Surface Water and Ocean Topography (SWOT) mission offers novel global observations of river hydrodynamics, yet its performance across varied river morphologies remains understudied. We evaluate SWOT node and raster products over a ∼210 km stretch of the Ganga River, India, during the fast‐sampling phase, using GNSS‐based continuous ...
Pankaj R. Dhote, Ankit Agarwal, Adrien Paris, Gaurish Singhal, Praveen K. Thakur, Hind Oubanas, Daniel M. Moreira, Laetitia Gal, Vaibhav Garg, Pramod Kumar, Raghavendra P. Singh, Stephane Calmant   +11 more
wiley   +1 more source

Coseismic Vertical Displacement for a Shallow Thrust Earthquake From EarthDEM Data

Geophysical Research Letters, Volume 52, Issue 18, 28 September 2025.
Abstract Coseismic vertical displacements are important observations that help improve our understanding of fault mechanisms and how earthquakes alter landscapes. It has been a challenge to quantify long‐wavelength topographic changes for thrust earthquakes using optical satellite imagery, as most recent studies focus on strike‐slip earthquakes that ...
Chunli Dai, Thomas Casteel, Jeffrey T. Freymueller, Ian M. Howat, Erik Husby   +4 more
wiley   +1 more source

Beam Footprint Detection and Tracking for Non-cooperative Bistatic SAR [PDF]

Radioengineering, 2016
In non-cooperative bistatic synthetic aperture radar (SAR), the position of transmitter’s beam footprint should be detected and tracked in real-time to perform beam synchronization.
F. Yan, W. Chang, X. Li, Q. Zhang
doaj