CORRECTION METHOD OF INERTIAL NAVIGATION SYSTEM Russian patent published in 2018 - IPC G01C21/18 

FIELD: instrument engineering.

SUBSTANCE: invention relates to the field of instrument engineering and can be used in the creation of navigation systems. Method for correcting the inertial navigation system (INS) is that the INS is corrected by pre-packaged external sources of navigation information by applying corrective signals to the gyroscopes of horizontal INS channels by means of gyro moment sensors directly and through integral correction. In this case, the signals of the current values of the differences in the linear velocity of the object measured by the INS and the correcting navigation systems are generated, the values of the differences, having negative values, as falling out of further accounting, are determined on the scale of speed differences the current values of the location of the centers of the membership functions as the current value of the mathematical expectation of the differences of the signals of the linear speed of the object. With the membership functions, the signals of the current values of the truth measure of each speed difference are generated to change the configuration of membership functions, the current configuration of the aggregate membership function of the aggregated difference of speeds is determined by aggregating the changed membership functions in the form of pointwise summation of their current state, the current value of the complexed difference in velocities is determined by finding the center of gravity of the aggregated membership function on the velocity difference scale and a correction signal corresponding to the current value of the complexed velocity difference is generated.

EFFECT: increase in the reliability of the correction system, an increase in the probability of forming a corrective signal without failures, depending on the situation that can worsen the accuracy characteristics of corrective navigation systems.

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