Imaging strategies for a space-borne interferometer
Abstract
The author describes two main strategies: (1) a large filled aperture consisting of a mosaic of light-weight mirrors. Internal referencing is used to coalign and approximately cophase the array. Diffraction-limited imaging is achieved by means of interferometric techniques such as roll deconvolution or pupil-plane interferometry. (2) A diluted array of diffraction-limited telescopes. Such an array can be exactly coaligned and cophased using internal and/or external references. In case of either strategy, pointing accuracy and mechanical vibrations will limit the system performances.
- Publication:
-
Optical Interferometry in Space
- Pub Date:
- August 1987
- Bibcode:
- 1987ESASP.273...23R
- Keywords:
-
- Image Reconstruction;
- Interferometry;
- Spaceborne Astronomy;
- Angular Resolution;
- Image Resolution;
- Phased Arrays;
- Reflecting Telescopes;
- Spaceborne Telescopes;
- Optics