High-Resolution Astronomical Imaging By Photon-Counting Speckle Masking

D. Schertl; F. Fleischmann; K.-H. Hofmann; G. Weigelt

doi:10.1117/12.941461

10 September 1987 High-Resolution Astronomical Imaging By Photon-Counting Speckle Masking

D. Schertl, F. Fleischmann, K.-H. Hofmann, G. Weigelt

Proceedings Volume 0808, Inverse Problems in Optics; (1987) https://doi.org/10.1117/12.941461
Event: Fourth International Symposium on Optical and Optoelectronic Applied Sciences and Engineering, 1987, The Hague, Netherlands

Abstract

Speckle masking is a triple correlation method that can reconstruct diffraction-limited images from astronomical speckle interferograms. The obtained resolution is about 30 times higher than the resolution of conventional astronomical photography. In this paper we describe a photon-counting version of speckle masking that can be applied to speckle interferograms consisting of a small number of photon events. We show computer simulations which illustrate the feasibility of the method. Finally, we compare photon-counting speckle masking with four-dimensional bispectrum processing, tomographic speckle masking, cross-triple correlation processing and bispectrum processing of photon-counting speckle interferograms.

Citation Download Citation

D. Schertl, F. Fleischmann, K.-H. Hofmann, and G. Weigelt "High-Resolution Astronomical Imaging By Photon-Counting Speckle Masking", Proc. SPIE 0808, Inverse Problems in Optics, (10 September 1987); https://doi.org/10.1117/12.941461

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