Results 31 to 40 of about 1,667,124 (215)

Satellite Monitoring of Railways using Interferometric Synthetic Aperture Radar (InSAR) [PDF]

, 2021
There is over 15,600 km of track in the Swedish railroad network. This network is vital for the transportation of people and goods across the country. It is important that this network is monitored and maintained to ensure good function and safety. A tool for monitoring and measuring ground deformation over a large area remotely with high frequency and
Palmqvist, Carl-William, Ochsner, Michelle, Jamali, Sadegh, Hashemi, Hossein, Åmerbilly, Kara, Nilfouroushan, Faramarz, Bagherbandi, Mohammad, Karim, Ramin, Kour, Ravdeep, Åldstedt, Rolf, Norrbin, Per   +10 more
openaire   +2 more sources

InSAR Elevation Inversion Method Based on Backprojection Model with External DEM

Leida xuebao, 2021
When Interferometric Synthetic Aperture Radar (InSAR) is used to obtain the Digital Elevation Model (DEM), highly sloped terrains will make interferometric fringes dense and increase the difficulty of phase unwrapping, which will affect the accuracy of ...
Xiaoning HU, Bingnan WANG, Maosheng XIANG, Zhongbin WANG   +3 more
doaj   +1 more source

Improvement of the Accuracy of InSAR Image Co-Registration Based On Tie Points – A Review

Sensors, 2009
Interferometric Synthetic Aperture Radar (InSAR) is a new measurement technology, making use of the phase information contained in the Synthetic Aperture Radar (SAR) images.
Xiaoli Ding, Zhilin Li, Yan Li, Weibao Zou   +3 more
doaj   +1 more source

MATHEMATICAL AND PHYSICAL APPROACHES TO INFER ABSOLUTE ZENITH WET DELAYS FROM DOUBLE DIFFERENTIAL INTERFEROMETRIC OBSERVATIONS USING ERA5 ATMOSPHERIC REANALYSIS [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2023
Atmospheric water vapor (WV) is one of the driving constituents of the atmosphere. The modelling and forecasting of WV and derived quantities like precipitable water is reliable on regional scales but challenging on small scales because of its high ...
B. Kamm, A. Schenk, P. Yuan, S. Hinz
doaj   +1 more source

Model-based CP Selection Method for Calibration of Airborne InSAR with Sparse GCPs

Leida xuebao, 2012
High-precision height acquisition needs to correct the interferometric parameters errors by interferometric calibration for Interferometric Synthetic Aperture Radar (InSAR) system with many Ground Control Points (GCPs).
Hu Ji-wei, Hong Jun, Ming Feng, Li Liang
doaj   +1 more source

Performance Analysis of Flat Surface Assumption and Residual Motion Errors on Airborne Repeat-pass InSAR

Leida xuebao, 2013
When applying to the airborne repeat-pass Interferometric Synthetic Aperture Radar (InSAR), which has long synthetic aperture and large azimuth-dependent errors, the surface assumption used to simply the time-domain algorithm model and the residual ...
Lin Xue, Li Fang-fang, Hu Dong-hui, Ding Chi-biao   +3 more
doaj   +1 more source

A Framework for Correcting Ionospheric Artifacts and Atmospheric Effects to Generate High Accuracy InSAR DEM

Remote Sensing, 2020
Repeat-pass interferometric synthetic aperture radar is a well-established technology for generating digital elevation models (DEMs). However, the interferogram usually has ionospheric and atmospheric effects, which reduces the DEM accuracy.
Zhiwei Liu, Cui Zhou, Haiqiang Fu, Jianjun Zhu, Tingying Zuo   +4 more
doaj   +1 more source

Ice velocity measurements of Langjökull, Iceland, from interferometric synthetic aperture radar (InSAR) [PDF]

Journal of Glaciology, 2009
AbstractWe have computed the velocity of Langjökull ice cap (LIC), Iceland, using InSAR data acquired by the European Remote-sensing Satellite in 1994 and an ice-surface elevation model derived from a GPS survey conducted in 1997. The velocity map covers 68% of the 925 km2of LIC.
Steven Palmer, Andrew Shepherd, Helgi Björnsson, Finnur Pálsson   +3 more
openaire   +1 more source

A SHORT REVIEW ON PERSISTENT SCATTERER INTERFEROMETRY TECHNIQUES FOR SURFACE DEFORMATION MONITORING [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2022
Technology advancement has urged the development of Interferometric Synthetic Aperture Radar (InSAR) to be upgraded and transformed. The main contribution of the InSAR technique is that the surface deformation changes measurements can achieve up to ...
A. M. H. Ansar, A. H. M. Din, A. H. M. Din, A. S. A. Latip, M. N. M. Reba   +4 more
doaj   +1 more source

A Concept for High Performance Reflector-Based Synthetic Aperture Radar [PDF]

, 2010
The success of current spaceborne Synthetic Aperture Radar (SAR) is boosting the performance requirement of next generation systems. In order to cope with the evolution of SAR, the design of the new systems will need to meet higher requirements for ...
Patyuchenko, Anton, Huber, Sigurd, Anton Patyuchenko, Alberto Moreira, Moreira, Alberto, Younis, Marwan, Krieger, Gerhard, Sigurd Huber, Marwan Younis, Gerhard Krieger   +9 more
core   +1 more source