Imaging speckle interferometer in space: image reconstruction by speckle masking.
Abstract
The authors propose the construction of a large multiple-mirror interferometer in space. For example, at λ ≡ 100 nm and with a baseline of 20 m, a resolution of 0.001 sec of arc can be obtained. At short UV wavelengths a multiple-mirror interferometer will produce speckle interferograms caused by aberrations and deformations of the interferometer. From the speckle interferograms true diffraction-limited images can be reconstructed by various speckle methods. The speckle-masking method (triple correlation) is attractive since it yields true images with high signal-to-noise ratio. The limiting magnitude of interferometry in space is about 24.
- Publication:
-
Journal of the Optical Society of America A
- Pub Date:
- November 1986
- DOI:
- 10.1364/JOSAA.3.001908
- Bibcode:
- 1986JOSAA...3.1908H
- Keywords:
-
- Image Reconstruction;
- Imaging Techniques;
- Interferometers;
- Spaceborne Astronomy;
- Speckle Patterns;
- Angular Resolution;
- Masks;
- Signal To Noise Ratios;
- Instrumentation and Photography;
- Space Instrumentation:Speckle Interferometry;
- Speckle Interferometry:Space Instrumentation