1 September 1988 Phased Array System Using The Far-Field Point Spread Function
Author Affiliations +
We present a description of a phased array system using the far-field point spread function to estimate the tilt and piston errors. Digital control electronics were utilized to phase one beam to two others that were already in phase to simulate a multiple-aperture telescope system. A control algorithm for estimation of tilt and piston errors similar to the Newton-Raphson algorithm for locating the roots of a function was implemented. A simulation of the system was performed, the system hardware was built, and the system was tested in both an off-line software test and an experimental test-bed. Piston phasing with a capture range of X/4 and closed-loop tilt phasing with a bandwidth of 2 Hz were accomplished.
Corey J. Hennessy, Corey J. Hennessy, Charles A. Tipton, Charles A. Tipton, Patricia J. Wallentine, Patricia J. Wallentine, } "Phased Array System Using The Far-Field Point Spread Function," Optical Engineering 27(9), 279718 (1 September 1988). https://doi.org/10.1117/12.7976750 . Submission:


GTC adaptive optics hardware electronics
Proceedings of SPIE (July 26 2016)
A decade of operations with the laser traffic control system...
Proceedings of SPIE (September 12 2012)
NGST fine guidance sensor
Proceedings of SPIE (March 04 2003)
Systems Engineering For The Gravity Probe-8 Program
Proceedings of SPIE (July 17 1986)

Back to Top