Estimating the Navigation Quality of the Earth’s Anomalous Gravity Field
https://doi.org/10.17285/0869-7035.2016.24.2.095-106
Abstract
Application of modern global geopotential models to estimate the navigation quality of the Earth’s anomalous gravity field (EAGF) is considered from the viewpoint of its use in autonomous (correlation-extreme) navigation. Various algorithms for calculating route and area navigation quality characteristics, for which the authors used the variance and correlation radius of a measured EAGF parameter, are presented. The results of the experimental studies on estimation of the EAGF navigation quality are discussed by analyzing vertical deflections and second derivatives of the perturbing potential in the Sea of Okhotsk with the use of the model EGM-2008 to degree 2190. It is shown that second derivatives of the geopotential demonstrate a higher quality as applied to navigation purposes.
About the Authors
V. N. Koneshov
Schmidt Institute of Physics of the Earth (IFZ), Russian Academy of Sciences
Russian Federation
Russian Federation
V. B. Nepoklonov
Lomonosov Moscow State University
Russian Federation
Russian Federation
L. I. Avgustov
Ramenskoye Design Bureau
Russian Federation
Russian Federation
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Review
For citations:
Koneshov V.N., Nepoklonov V.B., Avgustov L.I. Estimating the Navigation Quality of the Earth’s Anomalous Gravity Field. Giroskopiya i Navigatsiya. 2016;24(2):95-106. (In Russ.) https://doi.org/10.17285/0869-7035.2016.24.2.095-106
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