Results 81 to 90 of about 120,225 (320)

Resolution Equation for SAR Systems Synthesizing Circular Aperture

open access: yesIEEE Access
The resolution of a synthetic aperture radar (SAR) system depends not only on the operating frequency range of a radar but also on the geometry. A radar system operating at MHz frequencies facilitates SAR resolution to the meter (m) level with a linear ...
Viet T. Vu   +3 more
doaj   +1 more source

Analysis of Security Imaging Method for Walking Human Screening With Single Channel Synthetic Aperture Radar

open access: yesIEEE Access, 2019
In this paper, a security screening imaging method for walking human with single channel synthetic aperture radar (SAR) technology is proposed. According to the theory of SAR imaging, the imaging response for each single echo of the three dimensional (3D)
Shuliang Gui   +3 more
doaj   +1 more source

Mapping of wind-thrown forests using satellite SAR images [PDF]

open access: yes, 2010
The study focuses on investigation and evaluation of wind- thrown forest mapping using satellite remotely sensed data from three synthetic aperture radar (SAR) sensors.
Eriksson, Leif E.B.   +4 more
core   +1 more source

Zooming Out: Methods and Future Directions in Landscape‐Scale Functional Assessment of Inland Wetlands

open access: yesWIREs Water, Volume 13, Issue 1, January/February 2026.
Wetlands provide essential landscape functions, retaining water and nutrients, supporting biodiversity, and sequestering carbon, but assessing these functions at large spatial scales remains challenging. This systematic review describes and evaluates currently available approaches to quantifying wetland function at landscape scales.
Kimberly Van Meter   +6 more
wiley   +1 more source

Synthetic-Aperture Radar Radio-Frequency Interference Suppression Based on Regularized Optimization Feature Decomposition Network

open access: yesRemote Sensing
Synthetic-aperture radar (SAR) can work in all weather conditions and at all times, and satellite-borne radar has the characteristics of short revisiting period and large imaging width.
Fuping Fang   +4 more
doaj   +1 more source

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

open access: yes
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.   +7 more
core   +1 more source

System Concepts for Bi- and Multi-Static SAR Missions [PDF]

open access: yes, 2003
The performance and capabilities of bi- and multistatic spaceborne synthetic aperture radar (SAR) are analyzed. Such systems can be optimized for a broad range of applications like frequent monitoring, wide swath imaging, single-pass cross-track ...
Fiedler, Hauke   +4 more
core  

SMAP Satellite Microwave Radiometry to Monitor River Flow and Lake Level in the Lower Mekong Basin

open access: yesEarth and Space Science, Volume 13, Issue 1, January 2026.
Abstract The NASA Soil Moisture Active Passive Mission (SMAP) satellite passive microwave radiometry (PMR) capability is demonstrated for measurements of river stage, river discharge, and lake level with in situ gauging data in the Lower Mekong Basin (LMB).
A. Podkowa   +3 more
wiley   +1 more source

Effect of Land Cover Type on 3D Deformation Recovery From Synthetically Deformed High Resolution Satellite Optical Imagery

open access: yesEarth and Space Science, Volume 13, Issue 1, January 2026.
Abstract The limits of detection for earthquake surface deformation in the spatial domain have improved with advances in remote sensing imagery data availability, resolution, and analysis. Sub‐pixel correlation and digital elevation model (DEM) differencing from sub‐meter, earthquake‐spanning satellite optical imagery has enhanced surface rupture ...
C. Hanagan, S. B. DeLong, N. G. Reitman
wiley   +1 more source

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