Automatic control in space 1982 : proceedings of the ninth by P Th L M van Woerkom; IFAC Technical Committee on

By P Th L M van Woerkom; IFAC Technical Committee on Space.; European Space Research and Technology Centre. Powers and Controls Division

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Extra resources for Automatic control in space 1982 : proceedings of the ninth IFAC/ESA symposium, Noordwijkerhout, the Netherlands, 5-9 July 1982

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Increasing the intensity of f lexible 2. 3. 4. dynami c s . Stability analys i s has accounted for large bending modes . FUNCTIONAL DESIGN The veh i c l e conf i guration and mission shown in F i gure 3. altitudes Rate Gyros and Horizon Sensors for rate and Th e ACS hardware and software functions are ( 2 0 0 to 235 naut ical mi le s ) The ba sel ine ACS uses cause areodynamic torques that are attitude sensing. larger than the gravity gradient torque s . con f i guration can accomodate three star trackers when requirements deem necessary .

Concept re latively insens it ive to spacecraft con f i guration change s . Th i s flexibil ity i s further enhanced b y the u se o f a microproce s sor based The ove r a l l AOCS configuration adopted i s de s c r ibed , the contro l l e r . theoret ic a l de s i gn aspects outl ined and the functions and implementation of the contr o l le r discussed . The subsystem e lectronic configuration concentrates the maj or ity o f control seque nce algor ithm imp lementation , telemetry , te lecommand and power control into the contro l ler .

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