Shift-and-add-type algorithms and their application to Capella.
Abstract
A method for astronomical image reconstruction proposed by Bates and Cady (1980) involves superimposing regions about the brightest pixels of each frame produced by speckle interferometric techniques. This method is referred to as 'shift-and-add' (SAA). It is pointed out that the simplicity of this method makes it very suitable for analysis and simulation. The present investigation is concerned with the application of extensions of SAA to the problem of determining reliable double star intensity ratios. A summary is provided of theoretical and simulation results reported by Bagnuolo (1982), and the application of SAA methods to Capella is discussed. Attention is given to SAA algorithm results and screened shift-and-add results.
- Publication:
-
Lowell Observatory Bulletin
- Pub Date:
- 1981
- Bibcode:
- 1983LowOB...9..180B
- Keywords:
-
- Binary Stars;
- Image Reconstruction;
- Interferometry;
- Speckle Patterns;
- Algorithms;
- Astronomy;
- Superposition (Mathematics);
- Astronomy