Azimuth calculation for buried pipelines using a synthetic array of emitters, a single survey line and scattering matrix formalism

We evaluate the simultaneous application of a synthetic-emitter array (SEA) methodology and formulation derived from the analysis of the rotation transformations of the scattering matrix (RTSM) to calculate the orientation of buried pipes from GPR data acquired along a single survey line. The main o...

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Detalles Bibliográficos
Autor principal: Bonomo, Néstor Eduardo
Publicado: 2016
Materias:
Azimuth calculation
Buried pipes
GPR
Synthetic-emitter array
Ground penetrating radar systems
Linear transformations
Precision engineering
Surveys
Accuracy and precision
Background clutter
Civil engineering applications
Emitter arrays
Rotation transformation
Scattering matrices
Standard deviation
Matrix algebra
accuracy assessment
array
buried structure
civil engineering
data acquisition
ground penetrating radar
pipeline
precision
soil surface
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09269851_v134_n_p253_Bullo
http://hdl.handle.net/20.500.12110/paper_09269851_v134_n_p253_Bullo
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_09269851_v134_n_p253_Bullo
record_format dspace
spelling paper:paper_09269851_v134_n_p253_Bullo2023-06-08T15:51:44Z Azimuth calculation for buried pipelines using a synthetic array of emitters, a single survey line and scattering matrix formalism Bonomo, Néstor Eduardo Azimuth calculation Buried pipes GPR Synthetic-emitter array Ground penetrating radar systems Linear transformations Precision engineering Surveys Accuracy and precision Background clutter Buried pipes Civil engineering applications Emitter arrays Rotation transformation Scattering matrices Standard deviation Matrix algebra accuracy assessment array buried structure civil engineering data acquisition ground penetrating radar pipeline precision soil surface We evaluate the simultaneous application of a synthetic-emitter array (SEA) methodology and formulation derived from the analysis of the rotation transformations of the scattering matrix (RTSM) to calculate the orientation of buried pipes from GPR data acquired along a single survey line. The main objective of this study is to analyze if the SEA-RTSM combination can improve the azimuth calculation obtained from the usual single-offset-RTSM (SO-RTSM) procedure. This possibility is based on the SEA ability of increasing the continuity and amplitude of the primary reflections with respect to the background clutter and noise, which is expected to reduce the fluctuations involved in the RTSM calculation of the azimuth, so that its accuracy and precision are improved. A SEA methodology designed to be used in conjunction with the RTSM methodology is described. A procedure that optimizes the results of the SEA methodology is explained. A statistical RTSM calculation is adopted in order to obtain the final azimuth. Different relevant parameters of the soil and the array of emitters are varied in order to evaluate the SEA-RTSM methodology and its results. Numerically simulated and experimental data are used in this evaluation. The SEA-RTSM and the SO-RTSM results are compared between them. These results are also compared with an equivalent common-midpoint-RTSM (CMP-RTSM) calculation. Improved precision and accuracy are obtained from the SEA-RTSM methodology in the great majority of the examples. The height/width of the resulting azimuth distribution increases 102% in average when using this procedure instead of the usual SO-RTSM procedure, the average standard deviation diminishes 12%, and the average differences between the calculated and true azimuths reduce 34%. Minor improvements with respect to SO are obtained with the CMP-RTSM methodology. The proposed SEA-RTSM methodology and its results are especially relevant in civil engineering applications in which it is necessary to know the azimuth with precision and it is not possible to acquire data following 2D grids due to obstacles in the soil surface. © 2016 Elsevier B.V. Fil:Bonomo, N. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2016 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09269851_v134_n_p253_Bullo http://hdl.handle.net/20.500.12110/paper_09269851_v134_n_p253_Bullo
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Azimuth calculation
Buried pipes
GPR
Synthetic-emitter array
Ground penetrating radar systems
Linear transformations
Precision engineering
Surveys
Accuracy and precision
Background clutter
Buried pipes
Civil engineering applications
Emitter arrays
Rotation transformation
Scattering matrices
Standard deviation
Matrix algebra
accuracy assessment
array
buried structure
civil engineering
data acquisition
ground penetrating radar
pipeline
precision
soil surface
spellingShingle Azimuth calculation
Buried pipes
GPR
Synthetic-emitter array
Ground penetrating radar systems
Linear transformations
Precision engineering
Surveys
Accuracy and precision
Background clutter
Buried pipes
Civil engineering applications
Emitter arrays
Rotation transformation
Scattering matrices
Standard deviation
Matrix algebra
accuracy assessment
array
buried structure
civil engineering
data acquisition
ground penetrating radar
pipeline
precision
soil surface
Bonomo, Néstor Eduardo
Azimuth calculation for buried pipelines using a synthetic array of emitters, a single survey line and scattering matrix formalism
topic_facet Azimuth calculation
Buried pipes
GPR
Synthetic-emitter array
Ground penetrating radar systems
Linear transformations
Precision engineering
Surveys
Accuracy and precision
Background clutter
Buried pipes
Civil engineering applications
Emitter arrays
Rotation transformation
Scattering matrices
Standard deviation
Matrix algebra
accuracy assessment
array
buried structure
civil engineering
data acquisition
ground penetrating radar
pipeline
precision
soil surface
description We evaluate the simultaneous application of a synthetic-emitter array (SEA) methodology and formulation derived from the analysis of the rotation transformations of the scattering matrix (RTSM) to calculate the orientation of buried pipes from GPR data acquired along a single survey line. The main objective of this study is to analyze if the SEA-RTSM combination can improve the azimuth calculation obtained from the usual single-offset-RTSM (SO-RTSM) procedure. This possibility is based on the SEA ability of increasing the continuity and amplitude of the primary reflections with respect to the background clutter and noise, which is expected to reduce the fluctuations involved in the RTSM calculation of the azimuth, so that its accuracy and precision are improved. A SEA methodology designed to be used in conjunction with the RTSM methodology is described. A procedure that optimizes the results of the SEA methodology is explained. A statistical RTSM calculation is adopted in order to obtain the final azimuth. Different relevant parameters of the soil and the array of emitters are varied in order to evaluate the SEA-RTSM methodology and its results. Numerically simulated and experimental data are used in this evaluation. The SEA-RTSM and the SO-RTSM results are compared between them. These results are also compared with an equivalent common-midpoint-RTSM (CMP-RTSM) calculation. Improved precision and accuracy are obtained from the SEA-RTSM methodology in the great majority of the examples. The height/width of the resulting azimuth distribution increases 102% in average when using this procedure instead of the usual SO-RTSM procedure, the average standard deviation diminishes 12%, and the average differences between the calculated and true azimuths reduce 34%. Minor improvements with respect to SO are obtained with the CMP-RTSM methodology. The proposed SEA-RTSM methodology and its results are especially relevant in civil engineering applications in which it is necessary to know the azimuth with precision and it is not possible to acquire data following 2D grids due to obstacles in the soil surface. © 2016 Elsevier B.V.
author Bonomo, Néstor Eduardo
author_facet Bonomo, Néstor Eduardo
author_sort Bonomo, Néstor Eduardo
title Azimuth calculation for buried pipelines using a synthetic array of emitters, a single survey line and scattering matrix formalism
title_short Azimuth calculation for buried pipelines using a synthetic array of emitters, a single survey line and scattering matrix formalism
title_full Azimuth calculation for buried pipelines using a synthetic array of emitters, a single survey line and scattering matrix formalism
title_fullStr Azimuth calculation for buried pipelines using a synthetic array of emitters, a single survey line and scattering matrix formalism
title_full_unstemmed Azimuth calculation for buried pipelines using a synthetic array of emitters, a single survey line and scattering matrix formalism
title_sort azimuth calculation for buried pipelines using a synthetic array of emitters, a single survey line and scattering matrix formalism
publishDate 2016
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09269851_v134_n_p253_Bullo
http://hdl.handle.net/20.500.12110/paper_09269851_v134_n_p253_Bullo
work_keys_str_mv AT bonomonestoreduardo azimuthcalculationforburiedpipelinesusingasyntheticarrayofemittersasinglesurveylineandscatteringmatrixformalism
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