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Proceedings Paper

Efficient spurious signal detection and mitigation in single-dish radio spectroscopy
Author(s): Seiji Kameno; Maurizio Miccolis; Masahiro Sugimoto; Theodoros Nakos
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Paper Abstract

We propose the Allan Variance method to identify spurious signals with sensitive detectability. With this method, detection level of -56 dB with respect to the system noise can be achieved within the integration time less than 10 min. Detected spurious signals can be mitigated by masking these channels before spectral bunching to required spectral resolution. We will present the principle of the method and the performance taken through the ALMA system verification activity. This method can be applied for universal single-dish spectroscopy.

Paper Details

Date Published: 23 July 2014
PDF: 10 pages
Proc. SPIE 9153, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VII, 91532L (23 July 2014); doi: 10.1117/12.2056535
Show Author Affiliations
Seiji Kameno, Joint ALMA Observatory (Chile)
Maurizio Miccolis, Joint ALMA Observatory (Chile)
National Ecological Observatory Network (United States)
Masahiro Sugimoto, Joint ALMA Observatory (Chile)
Theodoros Nakos, Joint ALMA Observatory (Chile)


Published in SPIE Proceedings Vol. 9153:
Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VII
Wayne S. Holland; Jonas Zmuidzinas, Editor(s)

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