Results 131 to 140 of about 12,687 (248)

Short-Range Nonstationary Clutter Suppression for Airborne KA-STAP Radar in Complex Terrain Environment

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Due to the range ambiguity effect and the complex terrain environment, the remote weak target of interest for nonsidelooking airborne radar is usually superimposed with the nonstationary and heterogeneous short-range strong clutter, so it is difficult ...
Yuanyi Xiong   +4 more
doaj   +1 more source

Feasibility Mapping of L‐Band InSAR for SWE Retrievals Across the Western United States

open access: yesGeophysical Research Letters, Volume 53, Issue 10, 28 May 2026.
Abstract Mountain snowpacks provide vital water resources for communities in the western U.S. (WUS), but high spatial variability challenges accurate measurement of snow water equivalent (SWE) from remote sensing platforms. Studies using repeat airborne L‐band (∼25 cm wavelength) Interferometric Synthetic Aperture Radar (InSAR) have demonstrated ...
Preetika Kaur   +9 more
wiley   +1 more source

The SARTOM Project; Tomography for enhanced target detection for foliage penetrating airborne SAR

open access: yes, 2008
The SARTOM project addresses a key area of defence interest, namely the detection and identification of targets hidden in foliage. The project has provided a rich source of data obtained from a series of flight trials that were conducted in September ...
Nannini, Matteo   +4 more
core  

Snow Depth on Arctic Sea Ice Retrieval Using a Synergy of Sentinel‐3's Active and Passive Microwave Instruments

open access: yesGeophysical Research Letters, Volume 53, Issue 10, 28 May 2026.
Abstract Snow depth remains one of the largest sources of uncertainty in satellite‐derived sea ice thickness (SIT). Here, we introduce the novel Nadir Radiometer and Radar Synergy (NaRRS) method that combines data from Sentinel‐3's Microwave Radiometer (MWR) and Synthetic Aperture Radar Altimeter (SRAL) to retrieve Arctic snow depth on sea ice.
Connor Nelson   +8 more
wiley   +1 more source

Machine Learning Reveals Hidden Bias in ERA5 Cloud Heights Over Earth's Third Pole

open access: yesGeophysical Research Letters, Volume 53, Issue 10, 28 May 2026.
Abstract Accurate cloud base height (CBH) over the Tibetan Plateau—Earth's Third Pole—is essential for monsoon dynamics, glacial melt, and water security, yet ERA5 systematically underestimates it. Here, we present a two‐step machine learning framework to mitigate this hidden bias.
W. Zhao   +9 more
wiley   +1 more source

Under-Foliage Object Imaging Using SAR Tomography and Polarimetric Spectral Estimators

open access: yes, 2012
International audienceThis paper addresses the imaging of objects located under a forest cover using polarimetric synthetic aperture radar tomography (POLTOMSAR) at L-band.
Huang, Yue   +5 more
core   +1 more source

SIREV - Sector Imaging Radar for Enhanced Vision

open access: yes, 2001
SIREV (Sector Imaging Radar for Enhanced Vision) is an innovative radar system which can supply high-quality images of a sector in front of an aircraft under almost every weather condition.
Witte, Franz   +4 more
core  

Airborne direct-detection and coherent wind lidar measurements along the east coast of Greenland in 2009 supporting ESA’s Aeolus mission

open access: yes, 2011
The Aeolus mission of the European Space Agency (ESA) will send the first wind lidar to space to fulfill the utmost need for global wind profile observations.
Witschas, Benjamin   +11 more
core   +1 more source

E-SAR P-band System Performance

open access: yes, 2006
DLR’s experimental airborne SAR E-SAR is well-known in Europe and beyond. It is a versatile system operating in four major radar frequency bands, one of them being the P-band starting at 300MHz.
Gabler, Bernd   +3 more
core  

Airborne Dual-Polarized Ku-Band FMCW Synthetic Aperture Radar for Snow Measurements

open access: yesIEEE Journal of Microwaves
We developed an ultra-wideband (UWB) dual-polarized Ku-band frequency-modulated continuous-wave (FMCW) airborne radar operating over the 13–18 GHz frequency range for measurements over snow and other targets.
Shriniwas Kolpuke   +4 more
doaj   +1 more source

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