Schwarz, Klaus-Peter P.Knickmeyer, Elfriede T.2005-07-212005-07-211990Knickmeyer, E. T. (1990). Vector gravimetry by a combination of inertial and GPS satellite measurements (Doctoral thesis, University of Calgary, Calgary, Canada). Retrieved from https://prism.ucalgary.ca. doi:10.11575/PRISM/150790315619805http://hdl.handle.net/1880/17835Bibliography: p. 139-154.Vector Gravimetry with inertial navigation systems has been successfully performed in semi-kinematic mode for several years. With advances in the kinematic use of GPS, also kinematic vector gravimetry has come within reach. The thesis deals with the problems of reducing the effects of INS sensor errors, determining the kinematic acceleration by means of GPS observations, and modelling the gravity vector in a state space setting. The requirements on INS and GPS observations are investigated in a covariance analysis. Different INS mechanizations, strapdown, platform, and rotating sensor unit, are compared. It is shown that only the last two are suited for vector gravimetry. Subject to the principal limitations of a simulation study, the quantitative results show that current INS and GPS hardware should allow the determination of deflections of the vertical with an accuracy of 1 arcsec. The determination of gravity anomalies with an accuracy of 10 ?ms-2, however, imposes very stringent requirements on the determination of the kinematic acceleration with GPS, which may possibly be met by high data rates and extensive filtering.xvi, 154 leaves ; 30 cm.engUniversity of Calgary graduate students retain copyright ownership and moral rights for their thesis. You may use this material in any way that is permitted by the Copyright Act or through licensing that has been assigned to the document. For uses that are not allowable under copyright legislation or licensing, you are required to seek permission.QB 334 K64 1990Gravity - MeasurementGlobal positioning systemInertial navigation systemsdoctoral thesis10.11575/PRISM/15079QB 334 K64 1990