Previous analyses have predicted that improved power-spectrum estimation results from application of speckle-imaging postprocessing to compensated astronomical images. We report the first results, to our knowledge, of compensated-speckle-imaging experiments, conducted at a compensated telescope operated by the U.S. Air Force, that confirm these predictions. The power-spectrum signal-to-noise ratio is used as the metric for evaluating the performance. We report the results of power-spectrum estimation for a single star and three binary stars, and we reconstruct images of the binary stars using the bispectrum method to obtain the Fourier phase of the object. Compensated and uncompensated results are compared. A previously derived expression that expresses the power-spectrum signal-to-noise ratio in terms of the compensated optical transfer function statistics and object parameters is verified by experimental data.
© 1994 Optical Society of America
Original Manuscript: July 15, 1992
Revised Manuscript: July 19, 1993
Published: May 10, 1994
Michael C. Roggemann, Eugene L. Caudill, David W. Tyler, Marsha J. Fox, Mark A. Von Bokern, and Charles L. Matson, "Compensated speckle imaging: theory and experimental results," Appl. Opt. 33, 3099-3110 (1994)