نتایج جستجو برای: and interferometric synthetic aperture radar insar technique of the above methods

تعداد نتایج: 25073783  

2010
Roland Romeiser Hans C. Graber

The long-term goal of this project is the establishment of receiving, processing, and interpretation capabilities for spaceborne along-track interferometric synthetic aperture radar (along-track InSAR, ATI) data at the University of Miami's Center for Southeastern Tropical Advanced Remote Sensing (CSTARS) for high-resolution surface current field mapping with special emphasis on applications in...

Journal: :Int. J. Applied Earth Observation and Geoinformation 2010
Qiang Chen Guoxiang Liu Xiaoli Ding Jyr-Ching Hu Linguo Yuan Ping Zhong Makoto Omura

A method for tightly integrating GPS observations and the persistent scatterer (PS) interferometric synthetic aperture radar (InSAR) is proposed to detect vertical ground motion in Hong Kong, China. The tropospheric zenith wet delays (ZWD) derived from GPS observations at sites in the SAR scenes are used

2002
Laurence C. Smith

Interferometric synthetic aperture radar (InSAR) is a powerful geodetic tool used to construct digital elevation models of the earth’s topography and to image centimeter-scale displacements associated with crustal deformation and the flow of ice sheets. The past decade has seen significant improvements in our understanding of earthquakes, volcanoes, and glaciers as a direct result of this techn...

2002
H. Rott T. Nagler C. Prati A. Mazzotti D. Tarchi

Interferometric synthetic aperture radar (InSAR) methods and applications for mapping and monitoring displacements on mountain slopes and subsidence in urban areas were investigated in the EC project MUSCL (Monitoring Urban Subsidence, Cavities and Landslides by means of remote sensing) using various techniques. The area-extended differential InSAR technique was applied for mapping slow slope m...

Journal: :JCP 2014
Yifei Chen Huaping Xu

Speckle noise in interferometric synthetic aperture radar (InSAR) phase images seriously degrades the quality of interferogram, disenables interferogram to reflect accurate phase characteristics of the target and increases the difficulty in extracting DEM information of the target area. Therefore, reducing speckle noise by interferogram filtering is a significant step in InSAR processing. First...

By today, the technology of synthetic aperture radar (SAR) interferometry (InSAR) has been largely exploited in digital elevation model (DEM) generation and deformation mapping. Conventional InSAR technique exploits two SAR images acquired from slightly different angles, in which the information of elevation and deformation can be captured through processing of the phase difference of the image...

Journal: :Progress in Physical Geography: Earth and Environment 2001

2015
D.P.S. Bekaert R. J. Walters

a r t i c l e i n f o Keywords: Atmosphere Tropospheric noise Corrections Phase-based Spectrometers Weather models InSAR State-of-the-art TRAIN Correcting for tropospheric delays is one of the largest challenges facing the interferometric synthetic aperture radar (InSAR) community. Spatial and temporal variations in temperature, pressure, and relative humidity create tropospheric signals in InS...

2009
Y. S. Zhou F. Cao

Abstract—The objective of this paper is to investigate the volume scattering for the vegetation parameter estimation of Polarimetric Interferometric Synthetic Aperture Radar (Pol-InSAR). Firstly the models for describing the volume scattering are derived from the Pol-InSAR imaging geometry and volume scattering characteristics. The interferometric properties of volume scattering as well as the ...

By increasing the applicability of ground-based SAR (GBSAR) systems in geoscience and remote sensing, the development and evaluation of new systems have gained attention. GBSAR systems can be utilized for monitoring areas that are hard to or cannot be seen by the airborne or spaceborne systems. Furthermore, they have better spatial and temporal resolutions and are cost-effective and easy to imp...

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