Results 61 to 70 of about 178,941 (346)
Remote SensingLand cover classification of Synthetic Aperture Radar (SAR) imagery is a significant research direction in SAR image interpretation. However, due to the unique imaging methodology of SAR, interpreting SAR images presents numerous challenges, and land ...
Mingxuan Wei +3 more
doaj +1 more source
Servomechanism for Doppler shift compensation in optical correlator for synthetic aperture radar [PDF]
, 1980 A method and apparatus for correcting Doppler shifts in synthetic aperture radar data is described. An optical correlator for synthetic aperture radar data has a means for directing a laser beam at a signal film having radar return pulse intensity ...
Bicknell, T. J., Constaninides, N. J.
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Remote Sensing in Ecology and Conservation, EarlyView.The abundance of herbaceous vegetation in grassy ecosystems—which cover >25% of the world's land surface—is highly variable and impacts key ecological processes including carbon sequestration and support for grazing wildlife and livestock. Here, we present a method for using high‐resolution, UAV‐borne Light Detection and Ranging (LiDAR) to estimate ...
Tyler C. Coverdale +3 more
wiley +1 more source
Small, EarlyView.Tailored sandwich‐type COF heterojunctions achieve optimal capacitance and energy density through H⁺ ion lamination and π‐electron conduction, demonstrating the potential for miniaturized and flexible energy storage devices. Abstract Covalent organic frameworks (COFs) nanofilms with well‐ordered channels and highly active interfaces have great ...
Xiaoyang Xu +8 more
wiley +1 more source
Tri-Frequency Synthetic Aperture Radar for the Measurements of Snow Water Equivalent [PDF]
SWESARR (Snow Water Equivalent Synthetic Aperture Radar and Radiometer) is an airborne instrument developed at the NASA Goddard Space Flight Center for the retrieval of Snow Water Equivalent. SWESARR was specifically designed to measure co-located active
Bonds, Quenton +7 more
core +4 more sources
IET Image Processing, 2021 Deep learning methods have recently displayed ground‐breaking results for synthetic aperture radar image change detection problem. However, they still face the challenges of intrinsic noise and the difficulty of acquiring labeled data.
Sanae Attioui, Said Najah
doaj +1 more source
Real-time programmable acoustooptic synthetic aperture radar processor [PDF]
, 1988 The acoustooptic time-and-space integrating approach to real-time synthetic aperture radar (SAR) processing is reviewed, and novel hybrid optical/electronic techniques, which generalize the basic architecture, are described.
Haney, Michael, Psaltis, Demetri
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Nanopore Trap for Label‐Free Fingerprinting of Surface‐modified Single Nanoparticles
Small Methods, EarlyView.A solid‐state nanopore trapping‐based methodology combines “trap‐release” measurement protocol with multiple features extracted from ionic current of trapping events to generate unique electrical fingerprints of nanoparticles with distinct surface functional layers.
Nianduo Cai +4 more
wiley +1 more source
Charge-coupled device data processor for an airborne imaging radar system [PDF]
, 1977 Processing of raw analog echo data from synthetic aperture radar receiver into images on board an airborne radar platform is discussed. Processing is made feasible by utilizing charge-coupled devices (CCD).
Arens, W. E.
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IEEE Access, 2018 This paper presents a novel system to obtain images from the underground based on ground penetrating radar (GPR). The proposed system is composed by a radar module mounted on board an unmanned aerial vehicle (UAV), which allows the safe inspection of ...
María García Fernández +6 more
semanticscholar +1 more source