Abstract

The navigation problem of the distributed satellites system (DSS) employing relative range measurements and some inertial position measurements of partial satellites is investigated. A fusion navigation algorithm based on the quasi-consistency extended Kalman filter (QCEKF) is proposed, which can provide an on-line evaluation of the navigation precision. Additionally, the fusion scheme can ensure that the upper bound for the algorithm is better than that without fusion. The simulations show the effectiveness of the navigation algorithms and the improved navigation precision of the fusion scheme.

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