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APEX - current status, performance and validation concept
TLDR
The Airborne Prism EXperiment (APEX) is an airborne pushbroom imaging spectrometer for Earth observation. Expand
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Improved Knowledge of SAR Geomerty through Atmospheric Modelling
Satellites observing and measuring the Earth’s surface with electromagnetic waves are subject to atmospheric path delays. Atmospheric effects on radar signal propagation modify the signal velocityExpand
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Influence of Atmospheric Path Delay on the Absolute Geolocation Accuracy of TerraSAR-X High-Resolution Products
TLDR
Two coupled investigations of TerraSAR-X (TSX) high-resolution data are described in this paper: geometric validation, and estimation of the tropospheric path delay using measurements of corner reflectors placed at different altitudes but nearly identical ranges. Expand
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Mitigation of atmospheric perturbations and solid Earth movements in a TerraSAR-X time-series
The TerraSAR-X (TSX) synthetic aperture radar (SAR) marks the recent emergence of a new generation of spaceborne radar sensors that can for the first time lay claim to localization accuracies in theExpand
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Measurement of Ionospheric Faraday Rotation in Simulated and Real Spaceborne SAR Data
TLDR
The influence of the atmosphere on a frequency-modulated electromagnetic wave traversing the ionosphere is becoming increasingly important for recent and upcoming low-frequency and wide-bandwidth spaceborne synthetic aperture radar (SAR) systems. Expand
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Characterizing macroinvertebrate assemblage structure in relation to stream size and tributary position
We examined the variability of macroinvertebrate assemblage structure, species identities, and functional feeding group composition in relation to stream size, tributary position, and in-streamExpand
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Geometric validation of TerraSAR-X high-resolution products
Switzerland's diversity of flat, rolling and Alpine terrain makes it ideal territory for geometric validation studies. Two parallel investigations of TerraSAR-X (TSX) highresolution data wereExpand
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Estimation of ionospheric TEC and Faraday rotation for L-band SAR
Spaceborne synthetic aperture radar (SAR) systems are used to measure geo- and biophysical parameters of the Earth's surface, e.g. for agriculture, forestry and land subsidence investigations.Expand
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Radiometric Terrain Correction Incorporating Local Antenna Gain
Radiometric terrain correction consists of normalising a SAR image for well-understood backscatter contributions in order to amplify less easily apparent influences (e.g. thematic land coverExpand
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Estimation of Atmospheric Path Delays in TerraSAR-X Data using Models vs. Measurements
Spaceborne synthetic aperture radar (SAR) measurements of the Earth's surface depend on electromagnetic waves that are subject to atmospheric path delays, in turn affecting geolocation accuracy TheExpand
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