Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 1980
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980aj.....85.1413k&link_type=abstract
Astronomical Journal, vol. 85, Oct. 1980, p. 1413-1420.
Astronomy and Astrophysics
Astronomy
13
Approximation, Correlators, Digital Systems, Error Analysis, Power Spectra, Spectral Correlation, Autocorrelation, Cross Correlation, Digital Simulation, Instrument Errors, Radio Astronomy
Scientific paper
A set of explicit approximation formulas to relate correlation as measured by a 3-level digital autocorrelator to the true correlation has been developed. These formulas are accurate to much less than 0.5%, and are also applicable to the more general case of a cross correlator. With the help of numerical simulations, the effects of the drifts of the transition levels on the power spectrum and the inaccuracy of the formulas have been studied. In the cases studied, which are representative of practical applications, the deviations from the scaling are less than 0.5% of the peak signal. We conclude that the inaccuracies inherent in the reduction methods and drifts in transition levels do not give rise to any significant errors in observed power spectra.
Heiles Carl
Kulkarni Sanjeev R.
No associations
LandOfFree
How to obtain the true correlation from a 3-level digital correlator does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with How to obtain the true correlation from a 3-level digital correlator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and How to obtain the true correlation from a 3-level digital correlator will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-947275