The Zero Annihilation Periodic (ZAP) controller is applied to the problem of vibration control of a noncolocatedflezible structure. It is shown that even though the transfer function is nonminimumphase, a plant inverse controller can be designed which elicits a deadbeat closed-loop response. The transfer function under investigation arises from a noncolocated actuator/sensor configuration used on the ASTREX jlezible structure at USAF/Phillips Laboratory. Several simulation ezamples are given to demonstrate the ZAP control method. As ezpected from the theory, the closedloop response is deadbeat, and the vibrations are damped instantaneously.
Astronomical instruments to detect exoplanets require extreme wavefront
stability. For these missions to succeed, comprehensive and precise
modeling is required to design and analyze suitable coronagraphs and
their wavefront control systems. In this paper, we describe techniques
for integrated modeling at scale that is, to the best of our
knowledge, 1000 times faster than previously published works. We show
how this capability has been used to validate performance and perform
uncertainty quantification for the Roman Coronagraph instrument.
Finally, we show how this modeling capacity may be necessary to design
and build the next generation of space-based coronagraph
instruments.
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