Roll Deconvolution Of Space Telescope Data: Inverse Filtering Of Two Speckle Interferograms

M. Muller; G. Weigelt

doi:10.1117/12.949550

25 November 1985 Roll Deconvolution Of Space Telescope Data: Inverse Filtering Of Two Speckle Interferograms

M. Muller, G. Weigelt

Proceedings Volume 0556, Intl Conf on Speckle; (1985) https://doi.org/10.1117/12.949550
Event: 29th Annual Technical Symposium, 1985, San Diego, United States

Abstract

Roll deconvolution is a speckle method that can improve the resolution of the 2.4m Hubble Space Telescope (HST) at short UV wavelengths. A diffraction-limited image can digitally be reconstructed from two degraded images recorded at two different roll angles of the HST. The reconstruction is performed by complex inverse filtering of the two degraded images. In digital simulations we have investigated how the signal-to-noise ratio of the reconstruction depends on photon noise (104 to 50 photon counts per pixel), on the structure and size of the point spread function (caused by aberrations) and other parameters.

Citation Download Citation

M. Muller and G. Weigelt "Roll Deconvolution Of Space Telescope Data: Inverse Filtering Of Two Speckle Interferograms", Proc. SPIE 0556, Intl Conf on Speckle, (25 November 1985); https://doi.org/10.1117/12.949550

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