Results 31 to 40 of about 2,626 (180)

Estimating snow accumulation and ablation with L-band interferometric synthetic aperture radar (InSAR)

The Cryosphere, 2023
Abstract. Snow is a critical water resource for the western United States and many regions across the globe. However, our ability to accurately measure and monitor changes in snow mass from satellite remote sensing, specifically its water equivalent, remains a challenge.
J. Tarricone, J. Tarricone, R. W. Webb, H.-P. Marshall, A. W. Nolin, A. W. Nolin, F. J. Meyer   +6 more
openaire   +3 more sources

A Coherence Improvement Method Based on Sub-Aperture InSAR for Human Activity Detection

Sensors, 2021
Human activity detection plays an important role in social security monitoring. Since human activity is very weak, it is necessary to employ the repeat-pass Interferometric Synthetic Aperture Radar (InSAR) technique to detect the potential activity ...
Zhongbin Wang, Bingnan Wang, Maosheng Xiang, Xiaoning Hu, Chong Song, Shuai Wang, Yachao Wang   +6 more
doaj   +1 more source

Forest mapping and monitoring with interferometric synthetic aperture radar (InSAR) [PDF]

Progress in Physical Geography, 2001
A synthetic aperture radar (SAR) is an active sensor transmitting pulses of polarized electromagnetic waves and receiving the backscattered radiation. SAR sensors at different wavelengths and with different polarimetric capabilities are being used in remote sensing of the earth.
openaire   +2 more sources

BASELINE ESTIMATION ALGORITHM WITH BLOCK ADJUSTMENT FOR MULTI-PASS DUAL-ANTENNA INSAR [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016
Baseline parameters and interferometric phase offset need to be estimated accurately, for they are key parameters in processing of InSAR (Interferometric Synthetic Aperture Radar).
G. Jin, X. Xiong, Q. Xu, Z. Gong, Y. Zhou   +4 more
doaj   +1 more source

A Novel Phase Unwrapping Method Used for Monitoring the Land Subsidence in Coal Mining Area Based on U-Net Convolutional Neural Network

Frontiers in Earth Science, 2021
Large-scale and high-intensity mining underground coal has resulted in serious land subsidence. It has caused a lot of ecological environment problems and has a serious impact on the sustainable development of economy.
Zhiyong Wang, Lu Li, Yaran Yu, Jian Wang, Zhenjin Li, Wei Liu   +5 more
doaj   +1 more source

A multiscale approach for detection and mapping differential subsidence using multi-platform InSAR products [PDF]

Proceedings of the International Association of Hydrological Sciences, 2020
Detecting and mapping subsidence is currently supported by interferometric synthetic aperture radar (InSAR) products. However, several factors, such as band-dependent processing, noise presence, and strong subsidence limit the use of InSAR for assessing ...
D. E. Solano-Rojas, S. Wdowinski, E. Cabral-Cano, B. Osmanoglu, E. Havazli, J. Pacheco-Martínez   +5 more
doaj   +1 more source

Slow Deformation Time-Series Monitoring for Urban Areas Based on the AWHPSPO Algorithm and TELM: A Case Study of Changsha, China

Remote Sensing, 2023
Health monitoring is important for densely distributed urban infrastructures, particularly in cities undergoing rapid economic progress. Permanent scatterer interferometry (PSI) is an advanced remote sensing observation technique that is commonly used in
Xuemin Xing, Jihang Zhang, Jun Zhu, Rui Zhang, Bin Liu   +4 more
doaj   +1 more source

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
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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

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