Karbelkar, SN and Nityananda, Rajaram (1987) Atmospheric Noise on the Bispectrum in Optical Speckle Interferometry. In: Journal of Astrophysics & Astronomy, 8 (3-4). 271 -274.
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Based on a simple picture of speckle phenomena in optical interferometry it is shown that the recent signal-to-noise ratio estimate for the so called bispectrum, due to Wirnitzer (1985), does not possess the right limit when photon statistics is unimportant. In this wave-limit, which is true for bright sources, his calculations over-estimate the signal-to-noise ratio for the bispectrum by a factor of the order of the square root of the number of speckles.
|Item Type:||Journal Article|
|Additional Information:||copy right of this article belongs to Indian Academy of Sciences.|
|Keywords:||speckle interferometry—bispectrum—signal-to-noise ratio.|
|Department/Centre:||Division of Physical & Mathematical Sciences > Physics|
|Date Deposited:||17 Jun 2009 10:52|
|Last Modified:||19 Sep 2010 05:34|
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