A method for the correction of an inertial navigation system using relative navigation satellite measurements

Computer Science

Scientific paper

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Accelerometers, Descent Trajectories, Inertial Navigation, Navigation Satellites, Position Errors, Least Squares Method, Satellite Perturbation, Spacecraft Landing, State Vectors

Scientific paper

A method is proposed for the correction of the inertial navigation system of a spacecraft prior to the reentry stage of the flight. The navigation information used includes measurements of the apparent acceleration and state vector components carried out by accelerometers and by the satellite navigation system. The method makes it possible to determine the orientation of the sensitivity axes of the inertial navigation system elements. The accuracy of the method is evaluated as a function of the statistical characteristics of the perturbation factors.

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