Corrected Gyrocompass Synthesis as a System with Changeable Structure

摘要

This report hereby introduces the experience of corrected gyrocompass development with automatic switch of gyrocompass in gyroazimuth mode. The questions of multicriterion synthesis of the gyrocompass control loop have been studied. As a method of phase plane, we selected the algorithm of the device switching in gyroazimuth mode and switching-back in gyrocompass mode with simultaneous changing of horizon indicator transfer coefficients and time constant. There shown the necessity of temporary delay input (their values have been selected) under mentioned switching. On basis of given requirements, we chose the parameters which provide device switching-back in gyrocompass mode under any initial gyrocompass deviations in horizontal plane. There developed the algorithm of gyrocompass ballistic deviation compensation due to the amendment generated by the special observing device without recourse to external information regarding the ship's acceleration. There worked out the synthesis technique of astatic stabilization systems. This technique allows synthesizing the stabilization loops by frequency method, having given maximum stabilization error in transient process and quality coefficients.