Physics – Optics
Scientific paper
Nov 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990spie.1351..787p&link_type=abstract
IN: Digital image synthesis and inverse optics; Proceedings of the Meeting, San Diego, CA, July 9-13, 1990 (A92-18776 05-74). Be
Physics
Optics
1
Computerized Simulation, Image Processing, Light Beams, Optical Correction Procedure, Phased Arrays, Telescopes, Aberration, Transfer Functions
Scientific paper
In order for a phased-array telescope to achieve its resolution potential, the individual telescopes and beam-combining optics must be precisely aligned. Misalignments can be measured directly with laser interferometers. An alternative, based on Gonsalves' phase-diversity concept is presented, whereby misalignments are inferred from the collected imagery. Once the misalignments have been estimated, they can be used to actively correct the system or to construct a Wiener-Helstrom filter to de-blur the collected imagery. The total process is referred to as multiple-plane measurement for aberration correction (MMAC). Simulations that demonstrate the use of MMAC in estimating both piston and tilt misalignments in the presence of noise are presented. Measurements of the sensitivity of MMAC to certain systematic errors are presented, and a subframing technique is demonstrated.
Crippen S. L.
Paxman Richard G.
No associations
LandOfFree
Aberration correction for phased-array telescopes using phase diversity does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Aberration correction for phased-array telescopes using phase diversity, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Aberration correction for phased-array telescopes using phase diversity will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-846019