Results 121 to 130 of about 7,805 (237)

Are Pixel Intensities Proportional To Radar Cross Section In SAR Images?

, 2012
Radar cross section has long been the measurement quantity of choice to describe the radar reflectivity of point targets in calibrated synthetic aperture radar (SAR) images.
Döring, Björn J., Schwerdt, Marco, Marco Schwerdt, Bjorn J. Doring   +3 more
core   +1 more source

Regional Differences in Sentinel-3 Radar Backscatter Over Greenland and its Impact on ice Sheet Altimetry Applications

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Satellite radar altimetry operating at Ku-band has provided crucial observations of ice sheet elevation change for more than three decades, offering a direct means to assess climate impacts. Surface height is derived from radar waveforms using retracking
Stine Kildegaard Rose, Louise Sandberg Sorensen, Kirk M. Scanlan, Jeremie Aublanc, Filomena Catapano, Alessandro Di Bella, Pierre Femenias, Sebastian B. Simonsen   +7 more
doaj   +1 more source

Concept Design of a Near-Space Radar for Maritime Surveillance and Near-Field Tsunami Early-Warning

, 2008
Off-shore detection of Tsunami waves is a critical component of an effective Tsunami early warning system (TEWS). Even more critical is the off-shore detection of local Tsunamis, namely Tsunamis that strike coastal areas within minutes from the ...
Galletti, Michele, Börner, Thomas, Krieger, Gerhard   +2 more
core  

Surface ice velocity, radar backscatter and frontal changes - links to datafiles

, 2018
Seasonal glacier ice velocities are important for precisely estimating annual ice discharge and understanding controlling mechanisms, but these measurements for a large number of Greenlandic glaciers are limited by low temporal resolution.
Khan, Shfaqat Abbas, Saurabh Vijay (7884500), Anders Kusk (5296189), Anders Anker Bjørk (6966770), Moon, Twila, Bjørk, Anders Anker, Kusk, Anders, Shfaqat Abbas Khan (7884503), Anne M Solgaard (7884506), Solgaard, Anne M, Twila Moon (3227652), Vijay, Saurabh   +11 more
core   +1 more source

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

, 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, Walker, Nicholas, Horn, Ralf, Marino, Armando, Woodhouse, Iain   +4 more
core  

Signal Processing Methods to Improve Ocean Surface Wave Estimation from a High Frequency Surface Wave Radar [PDF]

, 2011
High frequency surface wave radars are operated as a remote sensor to measure ocean surface parameters to ranges exceeding 200-300 km from the coastline.
Wang, Wei
core  

Glacier melt detection at different sites of Greenland ice sheet using dual-polarized Sentinel-1 images

Geo-spatial Information Science
Synectic Aperture Radar (SAR) backscatter coefficient is sensitive to glacier surface physical characteristic changes, including the states of melting and refreezing, but it is also sensitive to incidence angle variation.
Gang Li, Xiao Chen, Hui Lin, Andrew Hooper, Zhuoqi Chen, Xiao Cheng   +5 more
doaj   +1 more source

A Two-Stream LSTM-Based Backscattering Model at L-Band and S- Band for Dry Soil Surfaces Under Large Roughness Conditions

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
In this article, we report for the first time two radar measurements (Ji Mo 2008 and Min Qin 2009) on natural soil surfaces under large roughness, which were conducted by the China Research Institute of Radiowave Propagation.
Dong Zhu, Peng Zhao, Qiang Zhao, Qing-Liang Li, Yu-Shi Zhang, Li-Xia Yang   +5 more
doaj   +1 more source

Persistent enhancement of the HF pump-induced plasma line measured with a UHF diagnostic radar at HAARP [PDF]

, 2006
Plasma lines excited by a powerful, high-frequency (HF) radio wave are studied using data obtained with an ultrahigh frequency (UHF) radar at HAARP (High Frequency Active Auroral Research Program) from 3 to 5 February 2005.
Bernhardt, P. A., Heinselman, C. J., Kosch, Mike J., Djuth, F. T., Watkins, B. J., Oyama, S.   +5 more
core  

A Consistent Treatment of Microwave Emissivity and Radar Backscatter for Retrieval of Precipitation over Water Surfaces. [PDF]

J Atmos Ocean Technol, 2016
Munchak SJ, Meneghini R, Grecu M, Olson WS.   +3 more
europepmc   +1 more source