The fork algorithm for accurately estimating the intensity ratio of binary stars from speckle interferometry data is presented. For brighter stars simulation results suggest that the fork algorithm can attain a signal-to-noise ratio roughly 10 times greater than that of other algorithms, such as triple correlation and shift-and-add. The results of the application of the algorithm to Capella (Alpha Aurigae) data are described.
© 1988 Optical Society of America
Original Manuscript: May 2, 1988
Manuscript Accepted: July 7, 1988
Published: October 1, 1988
William G. Bagnuolo, "Binary-star intensity ratios by the fork algorithm," Opt. Lett. 13, 907-909 (1988)