Abstract
The Peano-Baker method is applied to the integration of the variational equations to produce the partial derivatives used in satellite navigation. In this method the analytic form of the state transition partial derivatives can be factored so that numerical integration is applied only to the departures from a simplified analytical model.
The advantage of using the Peano-Baker approach rather than direct integration of the variational equations is that with the Peano-Baker method numerical integration can be performed adequately with low order formulae and relatively large step sizes. Numerical results are indicated.
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Ditto, F.H. Partial derivatives used in trajectory estimation. Celestial Mechanics 1, 130–140 (1969). https://doi.org/10.1007/BF01230638
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DOI: https://doi.org/10.1007/BF01230638