IMPROVEMENT OF THE OPERATIONAL CHARACTERISTICS OF INTEGRATED NAVIGATION SYSTEMS ON THE BASIS OF TIGHTLY-COUPLED SCHEMES FOR THE SENSOR ERRORS DAMPING

摘要

This paper is devoted to the problem of damping of random residual drifts and random residual biases of the output signals of sensors of integrated navigation systems (INSs). The proposed solutions of the above problem rely on the implementation of closed-loop damping schemes. The mathematical support of such systems is based on joint procedures for the estimation of INS errors and for subsequent compensation for such errors. Technological features of elaboration of tightly-coupled schemes are considered in which INS errors are damped beginning with the level of sensors. The results of full-scale experiments are given, which corroborate the effectiveness of applying the proposed schemes in practice.