METHOD OF INERTIAL DATA ESTIMATION AND ITS CORRECTION ACCORDING TO MEASUREMENT OF DOPPLER VELOCITY SENSOR Russian patent published in 2017 - IPC G01C21/20 

FIELD: aviation.

SUBSTANCE: invention relates to the field of integrated navigation systems, control and guidance systems of aircrafts (AC). This indicated result is achieved by the following: expansion of the traditional model of inertial navigation system (INS) errors and including in it the system of three interconnected differential equations of the 1st order, describing the change of INS position coordinates, relatively to the Doppler velocity sensor (DVS), in the projections on the reference triad axis of gyroplatform (GP); - the correct formation of the measurement signals, the monitoring matrix and the models of communication, using the relations, connecting the numeration errors of the main navigational parameters triple with a low-angles of mismatch of the real and the reference triad GP INS. The high precision of speed errors estimation, and the drift angles of the actual GP INS allows to realize the effective correction of the navigation and flight information and from the two potentially equally accurate INS to determine the one, the angular information of which is the most appropriate for the piloting and decision of combat and special problems.

EFFECT: invention provides enhancements of the navigation systems.

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