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Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/1610

Title: Focal plane analysis of the Knox-Thompson algorithm in speckle interferometry
Authors: Karbelkar, S.N.
Keywords: BINARY STARS
IMAGE PROCESSING
SEEING (ASTRONOMY)
SIGNAL TO NOISE RATIOS
SPECKLE INTERFEROMETRY
ALGORITHMS
BRIGHTNESS
FOCAL PLANE DEVICES
HIGH RESOLUTION
POINT SPREAD FUNCTIONS
Issue Date: Nov-1990
Publisher: Springer-Verlag
Citation: Astronomy and Astrophysics, 1990, Vol.238, p475-484
Abstract: For the specific case of binary stars, this paper presents signal-to-noise ratio (SNR) calculations for the detection of the parity (the side of the brighter component) of the binary using the double correlation method. This double correlation method is a focal plane version of the well-known Knox-Thompson method used in speckle interferometry. It is shown that SNR for parity detection using double correlation depends linearly on binary separation. This new result was entirely missed by previous analytical calculations dealing with a point source. It is concluded that, for magnitudes relevant to the present day speckle interferometry and for binary separations close to the diffraction limit, speckle masking has better SNR for parity detection.
URI: http://hdl.handle.net/2289/1610
ISSN: 0004-6361
Alternative Location: http://adsabs.harvard.edu/cgi-bin/bib_query?1990A&A...238..475K
Copyright: (1990) by the European Southern Observatory. Scanned images provided by the NASA ADS.
Appears in Collections:Research Papers (A&A)

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