نتایج جستجو برای: coherency analysis

تعداد نتایج: 2825357  

2011
Katerina Konakli Armen Der Kiureghian

................................................................................................................................. iii ACKNOWLEDGMENTS ............................................................................................................ v TABLE OF CONTENTS ........................................................................................................... vii LIST O...

Journal: :Journal of Applied Mathematics and Physics 2015

2000
B. L. N. Kennett

Standard stacking procedures are based on the combination of many scalar traces, and can exploit the coherency of arrivals between traces using non-linear methods. Such stacks can be used with some success for three-component data but do not exploit the vector character of the seismic wave¢eld. A set of stacking methods are introduced to work directly with three-component data and include inter...

Journal: :Archéosciences 2021

– Usually only GPR reflection amplitudes are imaged, while data contain far more information. Multi-trace coherency visualisations offer new insights into structures otherwise hardly visible. Image fusing permits the combined display of different attributes (amplitude and coherency).

Journal: :Intelligent Decision Technologies 2009
Spiridon C. Denaxas Christos Tjortjis

Advances in biological experiments, such as DNA microarrays, have produced large multidimensional data sets for examination and retrospective analysis. Scientists however, heavily rely on existing biomedical knowledge in order to fully analyze and comprehend such datasets. Our proposed framework relies on the Gene Ontology for integrating a priori biomedical knowledge into traditional data anal...

Journal: :Revista brasileira de psiquiatria 2011
Hudson Wander de Carvalho Christopher J Patrick Miguel Roberto Jorge Sérgio Baxter Andreoli

OBJECTIVE Investigate the structural coherency of the 60-item version of the General Health Questionnaire via exploratory and confirmatory factor analyses. METHOD The study design is a cross-sectional survey. A random sample of 146 individuals from the city of Divinópolis-MG volunteered to participate in the present study and responded to the 60-item version of the General Health Questionnair...

Journal: :EURASIP J. Adv. Sig. Proc. 2005
Mark L. Williams Mark Preiss

A theoretical model is developed to describe the interferometric coherency between pairs of SAR images of rough soil surfaces. The model is derived using a dyadic form for surface reflectivity in the Kirchhoff approximation. This permits the combination of Kirchhoff theory and spotlight synthetic aperture radar (SAR) image formation theory. The resulting model is used to describe the interferom...

2015
Kumel H. Kagalwala H. Esat Kondakci Ayman F. Abouraddy Bahaa E. A. Saleh

The coherence of an optical beam having multiple degrees of freedom (DoFs) is described by a coherency matrix G spanning these DoFs. This optical coherency matrix has not been measured in its entirety to date--even in the simplest case of two binary DoFs where G is a 4 × 4 matrix. We establish a methodical yet versatile approach--optical coherency matrix tomography--for reconstructing G that ex...

2009
Lulu Tan Ruliang Yang Weidong Yu

HEIGHTS WITH POLINSAR DATA Lulu Tan , Ruliang Yang, Weidong Yu 1 Institute of electronics, Chinese Academy of Sciences, China; 2 Graduate University of Chinese Academy of Sciences, China. Email: [email protected]; [email protected]; Polarimetric synthetic aperture radar interferometry (PolInSAR) is a perspective remote sensing technique that has been intensively used for extracting forest ...

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