Space Qualified, Fast Steering Mirror (SQ_FSM)

Many fast steering mirrors (FSM) have been developed over the years, but there has never been one specifically designed for long-term operation in a high radiation, cryogenic space environment. The Missile Defense Agency (MDA), to support the continuing development of the Space Tracking and Surveillance System (STSS), is seeking the development of this mirror to support future high-resolution line-of-sight stabilization and rapid re-pointing applications. Applied Technology Associates (ATA) is proposing to extend the operation of its current 5″ FSM to space by: • Developing innovative techniques for radiation hardening the ATA high accuracy relative position sensor (HARPS). • Developing an innovative mechanical design that moves the actuator coils off the substrate and reaction mass to allow operation in a vacuum and lends itself to truly reactionless control. • Developing an innovative, adaptive approach to canceling the reaction torques using an adaptive controller which will be implemented in a Single-Event Effects Immune Reconfigurable FPGA (SIRF) currently being developed by Xilinx under a contract to AFRL/RVSE.