METHOD OF CORRECTING ORIENTATION PROGRAM PARAMETERS IN TERMINAL CONTROL OVER GUIDANCE OF ACCELERATING UNIT TO PRESET ORBIT Russian patent published in 2012 - IPC B64G1/24 

FIELD: transport.

SUBSTANCE: invention relates to space engineering. Proposed method comprises forecasting parameters of accelerating unit at cruising engine shutdown to define deviation of radius and radial speed from their magnitudes in preset orbit. Sensitivity of said parameters to orientation program parameters variation is defined. Control correction signals are generated for pitch angle and pitch angular speed to sum up corrections with their programmed magnitudes. Pitch angular acceleration is loaded into said program as extra parameter to define sensitivity of radius and radial speed sensitivity to angular acceleration change. Forecast deviations of radius and radial speed from their magnitudes in preset orbit are used to define corrections to pitch angular speed and pitch angular acceleration. Pitch angular speed correction signal is limited to preset level to vary pitch angular acceleration correction signal with pitch angular speed correction signal and inversely with generated pitch angular speed correction signal. Said corrections are summed up with programmed pitch angular speed and angular acceleration to define new parameters of orientation program.

EFFECT: reduced distortions acting on angular stabilisation circuit, higher accuracy of angular stabilisation.

6 dwg