Tip-tilt error for extremely large segmented telescopes: detailed theoretical point-spread-function analysis and numerical simulation results

Details Tip-tilt error for extremely large segmented telescopes: detailed theoretical point-spread-function analysis and numerical simulation results Tip-tilt error for extremely large segmented telescopes: detailed theoretical point-spread-function analysis and numerical simulation results

Jul 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002josaa..19.1274y&link_type=abstract

Journal of the Optical Society of America A: Optics, Image Science, and Vision, vol. 19, iss. no. 7, p. 1274-1285

Physics

Optics

6

Adaptive Optics, Attitude (Inclination), Error Analysis, Errors, Functional Analysis, Functions (Mathematics), Imaging Techniques, Numerical Analysis, Point Spread Functions, Random Errors, Segmented Mirrors, Simulation, Speckle Patterns, Telescopes

Scientific paper

We present an analysis of point-spread functions for segmented mirrors affected by random tip-tilt errors on each segment. In addition to Strehl ratio evaluation, this analysis considers key characteristics such as the intensity and the location of speckles and secondary peaks and the relative energy distribution between these features. We develop a method to describe the shape of a nonaveraged point-spread function and deduce the final expressions for ensemble-averaged characteristics. Based on Keck-type hexagonal segmentation geometry, our study is extended to an arbitrary number of segments, and we describe qualitatively the transition from the case of a mirror with few segments to that of a mirror with several hundred segments--prototype of the next generation of Extremely Large Telescopes.

Affiliated with

Also associated with

No associations

Rating

Tip-tilt error for extremely large segmented telescopes: detailed theoretical point-spread-function analysis and numerical simulation results 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 Tip-tilt error for extremely large segmented telescopes: detailed theoretical point-spread-function analysis and numerical simulation results, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tip-tilt error for extremely large segmented telescopes: detailed theoretical point-spread-function analysis and numerical simulation results will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-735094