Precision attitude control of symmetric spinning bodies

摘要: Abstract : Motivated by the arc-second pointing requirement of Unsupported Gyroscope experiment and other satellite applications, this research investigates problems associated with precision attitude control symmetric spinning bodies. An system is synthesized then studied analog simulation. Controller performance limitations are evaluated, using a laboratory model called Spinning Vehicle Simulator (SVS). A technique devised at Stanford University in 1966 that simplifies design spinning-vehicle controllers used to select controller gains. The resulting system, simulated on an computer, produces excellent response characteristics insensitive vehicle parameter or gain changes. magnitude error shown have zero-frequency spin-frequency components proportional body-fixed inertially fixed moments, respectively. (Author)