Results 81 to 90 of about 173,784 (296)

Coherent Performance Analysis of the HJ-1-C Synthetic Aperture Radar

Leida xuebao, 2014
Synthetic Aperture Radar (SAR) is a coherent imaging radar. Hence, coherence is critical in SAR imaging. In a coherent system, several sources can degrade performance.
Li Hai-ying, Zhang Shan-shan, Li Shi-qiang, Zhang Hua-chun   +3 more
doaj   +1 more source

A History of UNAVCO: Four Decades of Advancing Geodesy

Perspectives of Earth and Space Scientists, Volume 6, Issue 1, December 2025.
Abstract UNAVCO was a university‐governed consortium funded by the National Science Foundation (NSF), with support from the National Aeronautics and Space Administration (NASA) and the United States Geological Survey (USGS), to support geoscience research and education using geodesy.
Emily E. Zawacki, Donna J. Charlevoix, Charles M. Meertens, Jeffrey T. Freymueller, Tonie van Dam   +4 more
wiley   +1 more source

Accurate Analysis of Target Characteristic in Bistatic SAR Images: A Dihedral Corner Reflectors Case

Sensors, 2017
The dihedral corner reflectors are the basic geometric structure of many targets and are the main contributions of radar cross section (RCS) in the synthetic aperture radar (SAR) images.
Dongyang Ao, Yuanhao Li, Cheng Hu, Weiming Tian   +3 more
doaj   +1 more source

Radar systems for the water resources mission, volume 1 [PDF]

The state of the art determination was made for radar measurement of: soil moisture, snow, standing and flowing water, lake and river ice, determination of required spacecraft radar parameters, study of synthetic-aperture radar systems to meet these ...
Claassen, J. P., Erickson, R. L., Fong, R. K. T., Hanson, B. C., Komen, M. J., Mcmillan, S. B., Moore, R. K., Parashar, S. K.   +7 more
core   +1 more source

tNSF GAGE/SAGE Community Science Workshop: Advancing Geophysical Research Through Collaboration

Perspectives of Earth and Space Scientists, Volume 6, Issue 1, December 2025.
Abstract The 2025 NSF GAGE/SAGE Community Science Workshop, hosted by the EarthScope Consortium from May 18–21 in Bloomington, Minnesota, convened 188 participants from 109 institutions for four days of scientific exchange and community engagement. The workshop featured plenary sessions, poster presentations, special interest groups, and networking ...
Gillian Haberli, William Holt, Aditya Kar, Franz J. Meyer, Tolulope Olugboji   +4 more
wiley   +1 more source

AIRBORNE INTERFEROMETRIC SYNTHETIC APERTURE RADAR

Научный вестник МГТУ ГА, 2016
This article gives a brief description of the interferometric SAR mode. It gives a description and the main characteristics of some airborne interferometric SAR systems.
E. E. Nechaev, K. S. Deryabin
doaj  

Space shuttle search and rescue experiment using synthetic aperture radar [PDF]

The feasibility of a synthetic aperture radar for search and rescue applications was demonstrated with aircraft experiments. One experiment was conducted using the ERIM four-channel radar and several test sites in the Michigan area.
Larson, R. W., Sivertson, W. E., Jr., Zelenka, J. S.   +2 more
core   +1 more source

Temporal stability of soil moisture and radar backscatter observed by the advanced Synthetic Aperture Radar (ASAR) [PDF]

, 2008
The high spatio-temporal variability of soil moisture is the result of atmospheric forcing and redistribution processes related to terrain, soil, and vegetation characteristics.
Alexander Löw, Annett Bartsch, Baghdadi, Bamler, Bartalis, Baup, Carsten Pathe, Ceballos, Ceballos, Chen, Cosh, Cosh, Crow, Daniel Sabel, Davidson, De Lannoy, Dirmeyer, Dubayah, Engman, Entin, Fung, Gauthier, Grayson, Günter Blöschl, Hillel, José Martínez-Fernández, Kerr, Kerr, Klaus Scipal, Loew, Marcela Doubkova, Martinez-Fernandez, Martinez-Fernandez, Meier, Moran, Mäkynen, Narayan, Njoku, Njoku, Pellarin, Raju, Schanda, Stefan Hasenauer, Ulaby, Ulaby, Vachaud, van Zyl, Vinnikov, Wagner, Wagner, Wagner, Wagner, Walker, Walker, Western, Western, Wolfgang Wagner, Zhao, Zink   +58 more
core   +4 more sources

Spaceborne Synthetic Aperture Radar Survey of Subsidence in Hampton Roads, Virginia (USA)

Scientific Reports, 2017
Over the past century, the Hampton Roads area of the Chesapeake Bay region has experienced one of the highest rates of relative sea level rise on the Atlantic coast of the United States.
D. Bekaert, B. Hamlington, B. Buzzanga, C. E. Jones   +3 more
semanticscholar   +1 more source

Geospatial Insights Into Landslide Relics in the Northern Half of the Taihang Mountains: Topography, Geology and Beyond

Geoscience Data Journal, Volume 12, Issue 4, October 2025.
Landslides in the northern Taihang Mountains are concentrated at elevations of 800–1300 m, on slopes over 45°, and in north‐ and northwest‐facing aspects. Proximity to rivers increases landslide frequency, whereas faults influence landslide size. Loess deposits, grasslands and forests exhibit high landslide occurrence, with barrens showing the densest ...
Chong Xu, Xuewei Zhang, Lei Li, Liye Feng, Wentao Yang   +4 more
wiley   +1 more source