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Towards Validation of Satellite Gradiometric Data Using Modified Version of 2nd Order Partial Derivatives of Extended Stokes' Formula
KTH, School of Architecture and the Built Environment (ABE), Urban Planning and Environment, Geoinformatik och Geodesi. (Geodesy)
2010 (English)In: Artificial Satellites, ISSN 2083-6104, Vol. 44, no 4, 103-129 p.Article in journal (Refereed) Published
Abstract [en]

The satellite gradiometric data should be validated prior to being used. One way of such a validation process is to use some integral estimators which are the second-order partial derivatives of the extended Stokes formula to regenerate the data from the gravity anomaly at the topographic surface. In this paper, we present how least-squares modification methods are used to modify such integral estimators. Our concentration will be on validation of the vertical-horizontal and horizontal-horizontal elements of the gravitational tensor at satellite level. The paper will formulate the elements of the system of equations from which the modification parameters are derived based on all types of least-squares modification. The truncation and Paul's coefficients will also be modelled.

Place, publisher, year, edition, pages
Poland: Versita , 2010. Vol. 44, no 4, 103-129 p.
Keyword [en]
Combination of gradients, gradiometry, gravity gradient, isotropic kernel, integral gradient estimator, Paul's coefficients, signal and error spectra, truncation coefficients, validation
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Research subject
Järnvägsgruppen - Infrastruktur
URN: urn:nbn:se:kth:diva-61402DOI: 10.2478/v10018-009-0024-5ScopusID: 2-s2.0-77951754019OAI: diva2:479034
QC 20120130Available from: 2012-01-17 Created: 2012-01-17 Last updated: 2012-01-30Bibliographically approved

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Eshagh, Mehdi
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Geoinformatik och Geodesi

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