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Reduction of the Baseline Ripple on Spectra Recorded with the Parkes Radio Telescope

Published online by Cambridge University Press:  25 April 2016

R. Padman*
Affiliation:
Division of Radiophysics, CSIRO, Sydney

Extract

One of the factors determining system sensitivity in radio astronomy measurements of microwave emission and absorption spectra is the flatness of the spectrometer response in the absence of any spectral features. Ripple appears as a quasi-sinusoidal variation of this baseline and occurs whenever two or more components of the same signal reach the receiver by different paths and interfere.

Type
Contributions
Copyright
Copyright © Astronomical Society of Australia 1977

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References

Morris, D., Meudon Radioastronomie Observatoire Rapport Technique Provisoire, G.I. mm/DM/No. 125 (1973).Google Scholar
Morris, D., Meudon Radioastronomie Observatoire Rapport Interne G.I. mm 125a (1974).Google Scholar
Padman, R., CSIRO Division of Radiophysics Report RPP 2056 (L) (1977).Google Scholar
Poulton, G.T., Minimization of spectrometer ripple in prime-focus radio telescopes. Unpublished report (1974).Google Scholar
Poulton, G.T., and Almoayyed, T., Proc. 3rd European Microwave Conf,. C4-4 (1973).Google Scholar
Thomas, B. M., Proc. IEEE, 115, 1539 (1971).Google Scholar
Yabsley, D. E., Proc. Aston. Soc. Aust., 3, 113 (1977).CrossRefGoogle Scholar