Computer Science – Performance
Scientific paper
Sep 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991cosre..29..169r&link_type=abstract
Cosmic Res., Vol. 29, No. 2, p. 169 - 174
Computer Science
Performance
Artificial Satellites: Celestial Mechanics
Scientific paper
The deviation of the nominal variance matrices used in the discrete Kalman filter algorithm from the true variance matrices lowers the accuracy of estimation of the state vector. It is shown that when the actual variance matrices are majorized by standard matrices, the use of the latter for filtering will provide the best guaranteed value of the quadratic performance index among all linear estimators. A relation is derived as a characteristic of the reduction in the index of the error of estimation as a result of the transition to guaranteed variance matrices. The results of calculations are given in connection with the identification of the parameters of motion of an artificial earth satellite in a near-circular orbit.
Kokhanenko I. K.
Rusakov A. I.
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