Solar Adaptive Optics.
Abstract
The problem of imaging the solar surface is considered. A theoretical study is presented that indicates that traditional adaptive optic techniques are of limited usefulness for solar imaging. A new method for adaptive optic image sharpening for extended sources is described. The incoming wavefront has added to it controlled amounts of various aberrations. The image quality is sensed and an error signal derived that allows iterative corrections to the wavefront to be determined. The measure of the image quality that is used is an integrated power spectrum of the image plane distribution. It is shown that quantity is maximized for an unaberrated input wave. Results sharpening under conditions of moderately severe turbulence.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1984
- Accession Number
- ADA155434
Entities
People
- A. Wirth
- R. Ruquist