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

تعداد نتایج: 25073783  

2011
Daniele Perissin Zhiying Wang Teng Wang

In this work we introduce a very flexible research tool for processing Interferometric Synthetic Aperture Radar (InSAR) data. The software, called SARPROZ, is able to perform different multi-temporal analysis like Permanent Scatterers (PS), Quasi-PS (QPS) and much more. SARPROZ has been intensively used for analyzing several test-sites in China with different spaceborne SAR data. Here we show r...

2001
Yuri Fialko Mark Simons Duncan Agnew

We use Interferometric Synthetic Aperture Radar (InSAR) data to derive continuous maps for three orthogonal components of the co-seismic surface displacement field due to the 1999 Mw7.1 Hector Mine earthquake in southern California. Vertical and horizontal displacements are both predominantly antisymmetric with respect to the fault plane, consistent with predictions of linear elastic models of ...

2010
Sean M. Buckley Dochul Yang

The atmospheric artifacts in interferometric synthetic aperture radar (InSAR) measurements are a large error source in accurately estimating terrain deformation signals [1]. For example, the large magnitude, high spatial frequency atmospheric bubbles can easily be misinterpreted as deformation phenomena [2, 3]. Various InSAR time series techniques, such as the Permanent Scatterer (PS) and Small...

1999
A. Kohlhase K. Feigl

Since the quality of an inteferogram is still limited by the contributions of atmospheric variations and orbital uncertainties, the problem is to distinguish them from deformation signals. Thus, eliminating the geometric orbital error would improve the quality of an Interferometric Synthetic Aperture Radar (InSAR) image and make it easier to detect atmospheric artifacts. In this paper, we try t...

2009
Mingsheng Liao Timo Balz Lu Zhang Yuanyuan Pei Houjun Jiang

The new high-resolution synthetic aperture radar (SAR) satellite systems offer new possibilities for urban remote sensing. COSMOSkyMed and TerraSAR-X operate in X-band and both can deliver data with a spatial resolution of up to one meter. High-resolution SAR data is particularly useful for post-disaster damage assessment and monitoring, because SAR systems operate (almost) weather independent....

2017
O. Ku

Tropospheric delays are considered to be one of the main performance limitations for Interferometric Synthetic Aperture Radar technology when applied to ground deformation monitoring. In this study, we evaluate the performance of ERA-Interim global atmospheric reanalysis on estimating the tropospheric delay on Sentinel-1 InSAR observations. The results are validated by four D-InSAR interferogra...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سمنان 1392

in the area of vocabulary teaching and learning although much research has been done, only some of it has led to effective techniques of vocabulary teaching and many language learners still have problem learning vocabulary. the urge behind this study was to investigate three methods of teaching words. the first one was teaching words in context based on a traditional method of teaching that is,...

2009
Heiko Balzter

8 9 10 A Synthetic Aperture Radar (SAR) is an active sensor transmitting pulses of polarized 11 electromagnetic waves and receiving the backscattered radiation. SAR sensors at different 12 wavelengths and with different polarimetric capabilities are being used in remote sensing of 13 the Earth. The value of an analysis of backscattered energy alone is limited due to ambiguities 14 in the possib...

2014
Yang Wang Haifeng Huang Zhen Dong Manqing Wu

Abstract—In this paper, we propose a modified version of the Random Sample Consensus (RANSAC) method for Interferometric Synthetic Aperture Radar (InSAR) image registration based on the ScaleInvariant Feature Transform (SIFT). Because of speckle, the “maximization of inliers” criterion in the original RANSAC cannot obtain the optimal results. Since in InSAR image registration, the registration ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز - دانشکده ادبیات و زبانهای خارجی 1393

for several years, researchers in familiarity of efl teachers with post-method and its role in second and foreign language learners’ productions have pointed out that the opportunity to plan for a task generally develops language learners’ development (ellis, 2005). it is important to mention that the critical varies in language teaching was shown is the disappearances of the concept of method ...

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