Palomar Adaptive Optics Project: Status and Performance
We describe the current status of the Palomar 200 inch adaptive optics system, which in December of 1998 achieved its first high order (241 actuators) lock on a natural guide star.
adaptive↗
Engineering topics
Shi, F.
Publications and source records attributed to Shi, F..
DCATT Dispersed Fringe Sensor: Modeling and Experimenting with the Transmissive Phase Plates
Control algorithms developed for coarse phasing the segmented mirrors of the Next Generation Space Telescope (NGST)are being tested in realistic modeling and on the NGST wavefront control testbed, also known as DCATT.
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Telescope Simulator for the Nexus Wavefront Control Testbed
A telescope simulator was built as part of the Nexus wavefront control testbed, an NGST technology experiment at NASA's Goddard Space Flight Center.
NGST↗
Performance of the NGST Wavefront Control System as Tested on DCATT
The NGST wavefront control testbed (also known as DCATT) is being used to map out the accuracy and dynamic range of the baseline NGST wavefront control system.
wavefront control large optics wave front sensing ↗
DCATT Dispersed Fringe Sensor (DFS) -- Modeling and Experiment with Transmissive Phase Plates
The alignment and phasing control of NGST's segment primary mirrors use images from the science camera instead of dedicated instruments.
Wavefront sensing wavefront correction dispersed f↗
NGST Wavefront Control: Lessons Learned from DCATT and Nexu
Explore the source record for details and available documents.
NGST Wavefront Control NGST Lessons DCATT Nexu↗