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Sensors 2015, 15(8), 19124-19139; doi:10.3390/s150819124

The Thirty Gigahertz Instrument Receiver for the QUIJOTE Experiment: Preliminary Polarization Measurements and Systematic-Error Analysis

1
Instituto de Física de Cantabria (IFCA), Avda. Los Castros s/n, Santander 39005, Spain
2
Departamento Ingeniería de Comunicaciones (DICOM), Universidad de Cantabria, Plaza de la Ciencia s/n, Santander 39005, Spain
3
Instituto de Astrofísica de Canarias (IAC), Vía Láctea s/n, La Laguna 38205, Spain
*
Author to whom correspondence should be addressed.
Academic Editor: Vittorio M.N. Passaro
Received: 28 May 2015 / Revised: 25 July 2015 / Accepted: 31 July 2015 / Published: 5 August 2015
(This article belongs to the Section Physical Sensors)
View Full-Text   |   Download PDF [2735 KB, uploaded 5 August 2015]   |  

Abstract

This paper presents preliminary polarization measurements and systematic-error characterization of the Thirty Gigahertz Instrument receiver developed for the QUIJOTE experiment. The instrument has been designed to measure the polarization of Cosmic Microwave Background radiation from the sky, obtaining the Q, U, and I Stokes parameters of the incoming signal simultaneously. Two kinds of linearly polarized input signals have been used as excitations in the polarimeter measurement tests in the laboratory; these show consistent results in terms of the Stokes parameters obtained. A measurement-based systematic-error characterization technique has been used in order to determine the possible sources of instrumental errors and to assist in the polarimeter calibration process. View Full-Text
Keywords: instrumentation; astronomy; polarization; cosmic microwave background; systematic errors instrumentation; astronomy; polarization; cosmic microwave background; systematic errors
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Casas, F.J.; Ortiz, D.; Villa, E.; Cano, J.L.; Cagigas, J.; Pérez, A.R.; Aja, B.; Terán, J.V.; Fuente, L.; Artal, E.; Hoyland, R.; Génova-Santos, R. The Thirty Gigahertz Instrument Receiver for the QUIJOTE Experiment: Preliminary Polarization Measurements and Systematic-Error Analysis. Sensors 2015, 15, 19124-19139.

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