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Article information
2016 , Volume 21, ¹ 1, p.141-151
Shokin Y.I., Potapov V.P., Popov S.E., Giniyatullina O.L.
Satellite radar interferometry: information computer aspects
The radar interferometry methods for processing of radar images are considered. The basic advantages of radar imagery applied to optoelectronic imagery for solving problems of the Earth surface deformation monitoring are addressed. The stages for processing of radar images are considered. The most labor-intensive stages in terms of both computation and computation time are highlighted. The experience of radar imagery usage for estimation of the Earth’s surface deformations in the mining areas at the major mining regions is represented. We present the concept of building an information system using radar images as a data for geodynamic monitoring. ALOS satellite imagery, SKY-Med and multispectral satellite images Landsat are used as a data. In created prototype of the system we use cloud services such as DaaS and SaaS, which allows to concentrate on the process of geoprocessing and analysis of their characteristics in order to obtain new data for the processes which occurs in the mountain range. The results of the radar data processing in system which uses SARscape, NEXT ESA SAR TOOLBOX, traditional methods of interferogram calculating and small baseline subset method (SBAS) are represented. Special attention is focused on a method of image post-processing and data analysis, which allows to clarify the characteristics of geodynamic condition of the surface. For this purpose, morphology and fractal image processing techniques are used. It is allowed to track changes in the surface state on the basis of such integral characteristics as the field of linear elements surface, the distribution of its density and fractal dimension of the image. Application of permanent reflectors allowed producing an integrated assessment of the speed of the surface displacement for a limited set of pixels with a strong sustainable reflected signal. Numerical experiments show the opportunity of satellite radar interferometry for solving complex problems associated with massif state estimation over a large area. The approach to the implementation of preprocessing technology with Hadoop, which enables the integration of different imaging systems of remote sensing, is suggested.
[full text]
Keywords: radar interferometry, databases, geographic information systems, cloud services, processing packages, cluster systems, BIG DATA
Author(s):
Shokin Yuriy Ivanovich
Dr. , Academician RAS, Professor
Position: Scientific Director of the Institute
Office: Federal Research Center for Information and Computational Technologies
Address: 630090, Russia, Novosibirsk, Ac. Lavrentiev ave., 6
Phone Office: (383) 334 91 10
E-mail: shokin@ict.nsc.ru
SPIN-code: 6442-4180Potapov Vadim Petrovich
Dr. , Professor
Position: Deputy director
Office: Federal Research Center for Information and Computational Technologies
Address: 650003, Russia, Kemerovo, Ac. Lavrentiev ave., 6
Phone Office: (3842) 211400
E-mail: potapov@ict.sbras.ru
SPIN-code: 8947-1880Popov Semen Evgenievich
PhD.
Position: Senior Research Scientist
Office: Federal Research Center for Information and Computational Technologies
Address: 630090, Russia, Novosibirsk, Lavrentiev avenue, 6
Phone Office: (905)9692107
E-mail: popov@ict.sbras.ru
SPIN-code: 5627-9584Giniyatullina Olga Leonovna
PhD.
Position: Research Scientist
Office: Institute of Computational Technologies SO RAN
Address: Russia, Kemerovo, Novosibirsk, Lavrentiev avenue, 6
Phone Office: (3842) 281422
E-mail: kembict@gmail.com
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Bibliography link:
Shokin Y.I., Potapov V.P., Popov S.E., Giniyatullina O.L. Satellite radar interferometry: information computer aspects // Computational technologies. 2016. V. 21. ¹ 1. P. 141-151
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