نتایج جستجو برای: persistent scatterer interferometry

تعداد نتایج: 107899  

Journal: :IEEE Signal Process. Lett. 2007
Andrea Monti Guarnieri Stefano Tebaldini

This paper focuses on the performance achievable by spaceborne Synthetic Aperture Radar Interferometry (InSAR) in the estimation of line-of-sight crustal deformations from acquisitions over a distributed scatterer. Our model is suited for exploiting the Hybrid Cramér-Rao Bound (HCRB), where the unknowns are both deterministic parameters and stochastic variables. We take into account both target...

2001
H. Yamada Y. Yamaguchi E. Rodriguez Y. Kim W. M. Boerner

In this paper, we propose an polarimetric SAR interferometry technique for interferometric phase extraction of each local scatterer of the forest region. The proposed method formulated for local scattering center extraction is based on the ESPRIT algorithm which is known for high-resolution capability of closely located incidences. The method shows high-resolution performance when local scatter...

Journal: :Physical review. E, Statistical, nonlinear, and soft matter physics 2003
Patrick M Johnson Arnout Imhof Boris P J Bret Jaime Gómez Rivas Ad Lagendijk

Light transport in macroporous gallium phosphide, perhaps the strongest nonabsorbing scatterer of visible light, is studied using phase-sensitive femtosecond pulse interferometry. Phase statistics are measured at optical wavelengths in both reflection and transmission and compared with theory. The diffusion constant of light is measured in both reflection and transmission as a function of thick...

2003
Nico Adam Bert Kampes Michael Eineder

The permanent scatterer technique invented at POLIMI has meanwhile developed into a remarkable operational method. It facilitates innovative data products such as urban subsidence maps or atmospheric delay measurements and permits new geophysical applications. The accuracy and validity of this techniques has been demonstrated in several projects at DLR. Due to the outstanding availability of da...

ژورنال: :سنجش از دور و gis ایران 0
زهرا صادقی دانشگاه خواجه نصیرالدین طوسی محمدجواد ولدان زوج دانشگاه خواجه نصیرالدین طوسی مریم دهقانی دانشگاه شیراز

روش های سنتی و نوین تداخل سنجی راداری با اینکه در برآورد جابه جایی بسیار توانمندند، اما به دلیل پاره ای محدودیت ها، قادر به پایش جابه جایی در مناطق عاری از عوارض دست ساز بشری با نرخ جابه جایی بالا با دسترسی تصاویر راداری با نمونه برداری زمانی مناسب نیستند. لذا در این مقاله دو روش جدید به منظور بهبود الگوریتم تداخل سنجی راداری مبتنی بر پراکنش کننده های دائمی (روش های جدید) در برآورد جابه جایی در...

Journal: :International Journal of Remote Sensing 2021

Persistent scatterer interferometry (PSI) has been proved to be an advanced Interferometric Synthetic Aperture Radar (InSAR) technique used measure and monitor terrain deformation. Two of the critical problems with InSAR have effect refractive atmosphere decorrelation on interferometric phases due long spatial-temporal baseline. The low density persistent scatterers (PS) in non-urban areas affe...

Journal: :The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences 2013

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