Multiple correction during spacecraft approach in the case of autonomous navigation

Mathematics

Scientific paper

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Atmospheric Entry, Automatic Control, Autonomous Navigation, Error Correcting Devices, Interplanetary Flight, Space Navigation, Spacecraft Trajectories, Trajectory Optimization, Airborne/Spaceborne Computers, Interplanetary Trajectories, Matrices (Mathematics), Reentry Trajectories

Scientific paper

The paper considers the problem of trajectory correction during the approach of an interplanetary probe with an autonomous navigation system to a planet. It is considered that the autonomous optical system performs three separate measurements making it possible to determine deviations of the actual trajectory from the one prescribed in the picture plane. A three-parameter correction is accomplished after each set of three measurements. The correction procedure is based on the determination of a distribution of correction moments for which the cumulative correcting impulse is minimal.

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