METHOD FOR DETERMINATION OF PARAMETERS OF MOTION OF CENTER OF MASS OF SPACE VEHICLE WITH INTERNAL ACTUATORS AND REACTION ACTUATORS WITH OFF-CENTER ROD AND SYSTEM FOR DETERMINATION OF STATE OF ORBITAL LOW-ALTITUDE SPACE VEHICLE EQUIPPED WITH HYDRAULIC SYSTEM

摘要

FIELD: determination of parameters of motion of center of mass of orbital low-altitude space vehicle at disturbances. SUBSTANCE: method consists in performing the navigational measurements, estimation of acting disturbances, prediction of parameters of motion, determination of gravitational and aerodynamic moments acting on the space vehicle, determination of moments of unloading in inertial actuators, recording of operation of jet engines during unloading in the course of prediction of motion and more accurate determination of the space vehicle orientation. System has pulse generator, atmospheric density selector, integration pitch setting unit, space vehicle state vector increment adder unit, atnosphere disturbing action recording unit, gyro system moment-of- momentum measurement unit, Solar orbital coordinate measurement unit, Sun position determination unit, solar battery area setting unit, space vehicle section area setting unit, ballistic coefficient determination unit, unit for setting limiting permissible magnitude of moment of momentum of gyrostabilizer, unit for setting the pulse duration in starting the engines of space vehicle for unloading the gyrostabilizer, unloading channel determination unit, unit for setting the disturbing action of operation of engines by channels, relief disturbing action adder unit, space vehicle orbital motion angular velosity determination unit, unit for setting the arms of engines by channels, space vehicle gyrostabilizer moment-of-momentum determination unt, memory units, NOT, AND gates, switches and selector switch. EFFECT: enhanced reliability. 3 cl, 1 dwg