Aperture synthesis radioastronomy.
Abstract
The principles of aperture synthesis are described and attention is given to the operation of a two-element interferometer based on this procedure. The two-element device samples the Fourier transform of the sky brightness distribution. Consideration is given to the case of earth rotation synthesis with emphasis on east-west interferometers. Some natural limitations of aperture synthesis are described along with ways to overcome them. The image restitution process is considered with emphasis on incomplete synthesis and degraded phase.
- Publication:
-
Journal of Optics
- Pub Date:
- December 1979
- DOI:
- 10.1088/0150-536X/10/6/015
- Bibcode:
- 1979JOpt...10..354W
- Keywords:
-
- Interferometry;
- Radio Astronomy;
- Synthetic Apertures;
- Earth Rotation;
- Fourier Transformation;
- Luminous Intensity;
- Sky Brightness;
- Astronomy;
- Aperture Synthesis:Radio Interferometry