Effect of nonisoplanaticity on the shift-and-add algorithm
- 1 March 1984
- journal article
- Published by Optica Publishing Group in Optics Letters
- Vol. 9 (3) , 65-67
- https://doi.org/10.1364/ol.9.000065
Abstract
Analysis of the shift-and-add (SAA) algorithm in double-star speckle interferometry has been extended to include the case of partial nonisoplanaticity. It was found that the intensity ratio of the ghost to the principal spots produced by SAA is essentially constant, regardless of the degree of nonisoplanaticity, but that the ratio of either outer spot to the center spot declines in a manner similar to that of the autocorrelation.Keywords
This publication has 4 references indexed in Scilit:
- The application of Bates' algorithm to binary starsMonthly Notices of the Royal Astronomical Society, 1982
- On the isoplanatic patch size in stellar speckle interferometryJournal of Optics, 1982
- Towards true imaging by wideband speckle interferometryOptics Communications, 1980
- Computer simulations of speckle interferometry of binary stars in the photon-counting modeMonthly Notices of the Royal Astronomical Society, 1978