ERRORS OF ACCELEROMETER STRAPDOWN INERTIAL NAVIGATION SYSTEM IN THE CONDITIONS OF AIRCRAFT LONGITUDINAL AXIS CONING MOTION

摘要

An analytical dependence which determines the relations between the ASINS drift in calculating roll angle, the characteristics of HMCA coning motion and MMA errors has been obtained. Based on the analysis of this dependence, a method for improving ASINS accuracy, which consists in choosing such MMAs whose combination of errors satisfies specific requirements, has been offered. We have also found a solution to the problem of choosing MMAs in accordance with the required ASINS precision, its geometric dimensions and rocking parameters.