Karbelkar, S. N. ; Nityananda, Rajaram (1987) Atmospheric noise on the bispectrum in optical speckle interferometry Journal of Astrophysics and Astronomy, 8 (3). pp. 271-274. ISSN 0250-6335
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Official URL: http://www.ias.ac.in/jarch/jaa/8/271-274.pdf
Related URL: http://dx.doi.org/10.1007/BF02715049
Abstract
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: | Article |
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| Source: | Copyright of this article belongs to Indian Academy of Sciences. |
| Keywords: | Speckle Interferometry; Bispectrum; Signal-to-noise Ratio |
| ID Code: | 26470 |
| Deposited On: | 06 Dec 2010 12:29 |
| Last Modified: | 17 May 2016 09:46 |
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