Observability in the problem of navigation with respect to an unspecified reference point

Details Observability in the problem of navigation with respect to an unspecified reference point Observability in the problem of navigation with respect to an unspecified reference point

Jul 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985kosis..23..530v&link_type=abstract

Kosmicheskie Issledovaniia (ISSN 0023-4206), vol. 23, July-Aug. 1985, p. 530-534. In Russian.

Physics

Celestial Navigation, Interplanetary Navigation, Interplanetary Trajectories, Observability (Systems), Trajectory Measurement, Nonlinear Systems, Planetary Orbits, Planetary Rotation, Planetocentric Coordinates, Star Trackers

Scientific paper

The problem of observability in the planetary-approach segment of a spacecraft trajectory is examined in the case of navigation with respect to a known star and an unknown reference point on the planetary surface. Angular measurements are considered for both the two-dimensional and the three-dimensional case, with and without allowance for planetary rotation. It is shown that system observability exists only in the three-dimensional case when the planetary rotation is not taken into account.

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