Qualification of inversion inputs in certain engineering geophysical methods
Журнал Acta Geodaetica et Geophysica Hungarica
Издатель Akadémiai Kiadó
ISSN 1217-8977 (Print) 1587-1037 (Online)
Номер Volume 40, Number 2 / May 2005
DOI 10.1556/AGeod.40.2005.2.5
Страницы 171-192
Дата онлайн 19 июля 2005 г.
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Авторы
P. Salát1, D. Drahos2
1Department of Geophysics, Loránd Eötvös University H-1117 Budapest, Pázmány Péter sétány 1/c, Hungary
2Department of Geophysics, Loránd Eötvös University H-1117 Budapest, Pázmány Péter sétány 1/c, Hungary
Реферат
The present paper analyzes the possibilities for input qualification necessary for inversion of certain engineering geophysical measurement data series. The work formulates at first the requirements for determination of geophysical conclusions' reliability and/or accuracy. Then it reviews the quantities playing a role in qualification of geophysical data and geophysical conclusions deduced from the data. Statistical characterization of the ek = (yk - fk (x,z)) random differences between the yk geophysical measurement data and the fk (x,z) theoretical forward problem solutions calculated for the (x,z) model parameters is indispensable in quality controlled geophysical inversion. To qualify the { x } final result of inversion first of all the error components of observational and modelization origin of ek random differences should be determined. To give the s2k variances of the ek differences characterizing the data-model relationship experimental testing should be carried out. To estimate the input errors of least squares type geophysical inversion approximate methods can be suggested beside the ideal testing procedures. Such are: the subjective, the literature-based, the partial and the feedback data-model relationship qualification. In addition to them for certain inversions using 1D and 2D forward problem solutions, self-control based model class adaptive engineering geophysical measurements can also be applied. According to the testing experiences gained with different approximate input qualifications not any theoretical speculation or sophisticated computation procedure is able to substitute the experimental measurement studies.
Ключевые слова
approximate input qualifications, approximate input qualifications, engineering geophysics, modelization errors, observational errors, qualification of the data-model relationship, quality management
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http://www.akademiai.com/content/glk0j4764v80g08j/
Отправлено: 21.05.09 01:57. Заголовок: Qualification of inversion inputs in certain engineering geophysical methods
