Loading...
Please wait, while we are loading the content...
Similar Documents
Statistical approach to noise in stellar speckle interferometry
| Content Provider | Scilit |
|---|---|
| Author | Aime, Claude |
| Copyright Year | 1997 |
| Description | Journal: Pure and Applied Optics: Journal of the European Optical Society Part A In this paper we describe a new method to derive the variances of the power spectrum and the autocorrelation function of images recorded in the photon-counting mode. The formalism is different from that of Goodman and Belsher. The variances are written as functions of the tri-spectrum and the quadri-correlation function. For the power spectrum, we recover the result of Goodman and that of Dainty and Greenaway. For the autocorrelation function, a new expression is obtained. No remarkable effect corresponding to Goodman's `half-frequency' phenomenon is observed, but the variance at the space lag is found to be influenced by cuts of the triple correlations of the classical image intensity for space lags equals to and . A crude simplification of the expression of the variance of the autocorrelation function is used to derive results in terms of the signal-to-noise ratio (SNR). |
| Related Links | http://iopscience.iop.org/article/10.1088/0963-9659/6/1/003/pdf |
| ISSN | 09639659 |
| e-ISSN | 13616617 |
| DOI | 10.1088/0963-9659/6/1/003 |
| Journal | Pure and Applied Optics: Journal of the European Optical Society Part A |
| Issue Number | 1 |
| Volume Number | 6 |
| Language | English |
| Publisher | IOP Publishing |
| Publisher Date | 1997-01-01 |
| Access Restriction | Open |
| Subject Keyword | Journal: Pure and Applied Optics: Journal of the European Optical Society Part A Astronomy and Astrophysics Autocorrelation Function Speckle Interferometry Power Spectrum Signal To Noise Ratio Correlation Function |
| Content Type | Text |
| Resource Type | Article |
| Subject | Physics and Astronomy Engineering |
