45 research outputs found

    Application of "native" wavelet transform of gravity data for investigation of structure the sedimentary cover and crystalline basement

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    In this study authors have considered the basic theory and some real-world results of applying the technology of processing gravimetric data based on continuous and discrete wavelet transform with special "native" basic function. The most important result of this study is the technique for determining location and magnitude of the sources of the gravitational field in its wavelet domain for the two and three-dimensional cases. Synthetic examples demonstrate that this problem can be successfully solved for a large number of sources even with significant noise present in the gravimetric data

    Processing and interpretation of gravimetric data based on Ā«nativeĀ» continuous wavelet transform

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    Ā© SGEM2014 All Rights Reserved. In this study we present a method for interpretation of gravimetric data based on the socalled ā€œnativeā€ wavelet basis. We show that this apporach has several distinct advantages over commonly used methods, including a simple way of obtaining formal solutions of the inverse problem, easy identification of the causative sources, and efficient search for solutions of the nonlinear inverse problem in the wavelet domain

    ā€œNativeā€ wavelet transform data obtained on spherical earthā€™s surface

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    Ā© SGEM2014. All Rights Reserved. In this paper we considered the basic theory and real results of applying the technology of processing geophysical data based on continuous and discrete wavelet transform in the three-dimension case. Wavelets are a powerful tool for the analysis of signals in one or two dimensions. We give a brief review of the methods of constructing a wavelet transform on the sphere. Further, we discuss the advantages and disadvantages of these methods in terms of their application to geophysical problems solutions. The results of the application of wavelet transformation techniques for solving some applied problems for a plane and a sphere. The most important result is the technique for determining location and magnitude of the sources of the gravitational fields in its wavelet domain for the two- and threedimensional cases

    [Notes] La economia espaƱola : 1974-1982

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    In this paper we present a method for interpretation of gravimetric data obtained on spherical surface based on wavelet transform with the so-called "native" wavelet basis. We show that this approach has several distinct advantages over commonly used methods, including a simple way of obtaining formal solutions of the inverse problem and easy identification of the causative sources. The most important result is the technique for determining location and magnitude of the sources of the gravitational fields in its wavelet domain for the two-and three-dimensional cases. We demonstrate The results of the application of wavelet transformation techniques for solving some applied problems for a plane and a sphere

    Solutions of inverse problem of gravimetry on the sphere using "native" wavelet transform

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    Ā© SGEM2014 All Rights Reserved. In this study we present a method for interpretation of gravimetric data obtained on spherical surface based on wavelet transform with the so-called ā€œnativeā€ wavelet basis. We show that this apporach has several distinct advantages over commonly used methods, including a simple way of obtaining formal solutions of the inverse problem and easy identification of the causative sources

    Geophysical in urban areas

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    Ā© SGEM 2014. For the first time in the world practice, geophysical monitoring in urban conditions of the Kazan Kremlin was made. Negative impact of ground and technogenic waters on the architectural monuments, buildings and fortification walls were revealed. This results have turned helpful for reconstructions and repairs buildings of the Kazan Kremlin

    ā€œNativeā€ wavelet transform for solution inverse problem of gravimetry on the spherical manifold

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    Ā© SGEM2015. We show how the continuous wavelet transform with special basis, which we named the "native basis", can be used to analyze geopotential data obtained on the surface of a sphere. The offered method is applied to analyze of gravity anomalies and localize of causative sources of celestial bodies (Earth and Moon)

    Change in Magnetic Properties of Reservoir Rocks During In-Situ Combustion of Crude

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    Ā© 2015 Springer Science+Business Media New York The pattern of degree of change in rock magnetization on heating is shown, based on thermomagnetic and thermal analysis of rock samples from Permian asphalt deposits. When core samples are heated, the degree of magnetization may increase significantly due to conversion of iron-bearing minerals essentially to magnetite. In the kinetics of magnetite formation in rocks, the main players are oxidation of light and heavy hydrocarbons, which determine both temperature and redox conditions. The feasibility of using ground magnetic mapping for monitoring the state of the in-situ combustion front is assessed

    Application of "native" wavelet transform of gravity data for investigation of structure the sedimentary cover and crystalline basement

    Get PDF
    In this study authors have considered the basic theory and some real-world results of applying the technology of processing gravimetric data based on continuous and discrete wavelet transform with special "native" basic function. The most important result of this study is the technique for determining location and magnitude of the sources of the gravitational field in its wavelet domain for the two and three-dimensional cases. Synthetic examples demonstrate that this problem can be successfully solved for a large number of sources even with significant noise present in the gravimetric data
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