The Low Frequency Instrument (LFI) is a radiometer array covering the 30-70 GHz spectral range on-board the ESA Planck satellite, launched on May 14th, 2009 to observe the cosmic microwave background (CMB) with unprecedented precision. In this paper we describe the development and validation of a software model of the LFI pseudo-correlation receivers which enables to reproduce and predict all the main system parameters of interest as measured at each of the 44 LFI detectors. These include system total gain, noise temperature, band-pass response, non-linear response. The LFI Advanced RF Model (LARFM) has been constructed by using commercial software tools and data of each radiometer component as measured at single unit level. The LARFM has been successfully used to reproduce the LFI behavior observed during the LFI ground-test campaign. The model is an essential element in the database of LFI data processing center and will be available for any detailed study of radiometer behaviour during the survey.

Advanced modelling of the Planck-LFI radiometers / P. Battaglia, C. Franceschet, A. Zonca, M. R. F. Bersanelli, R. C. Butler, O. D’Arcangelo, R. J. Davis, S. Galeotta, P. Guzzi, R. Hoyland, N. Hughes, P. Jukkala, D. Kettle, M. Laaninen, R. Leonardi, D. Maino, N. Mandolesi, P. Meinhold, A. Mennella, P. Platania, L. Terenzi, J. Tuovinen, J. Varis, F. Villa, A. Wilkinson. - In: JOURNAL OF INSTRUMENTATION. - ISSN 1748-0221. - 4:12(2009 Dec), pp. T12014.T12014.1-T12014.T12014.18.

Advanced modelling of the Planck-LFI radiometers

C. Franceschet
Secondo
;
A. Zonca;M. R. F. Bersanelli;D. Maino;A. Mennella;P. Platania;
2009-12

Abstract

The Low Frequency Instrument (LFI) is a radiometer array covering the 30-70 GHz spectral range on-board the ESA Planck satellite, launched on May 14th, 2009 to observe the cosmic microwave background (CMB) with unprecedented precision. In this paper we describe the development and validation of a software model of the LFI pseudo-correlation receivers which enables to reproduce and predict all the main system parameters of interest as measured at each of the 44 LFI detectors. These include system total gain, noise temperature, band-pass response, non-linear response. The LFI Advanced RF Model (LARFM) has been constructed by using commercial software tools and data of each radiometer component as measured at single unit level. The LARFM has been successfully used to reproduce the LFI behavior observed during the LFI ground-test campaign. The model is an essential element in the database of LFI data processing center and will be available for any detailed study of radiometer behaviour during the survey.
modeling of microwave systems ; space instrumentation ; microwave radiometers ; instruments for CMB observations
Settore FIS/05 - Astronomia e Astrofisica
Settore FIS/01 - Fisica Sperimentale
Article (author)
File in questo prodotto:
File Dimensione Formato  
2009_battaglia_jinst.pdf

accesso aperto

Tipologia: Publisher's version/PDF
Dimensione 1.16 MB
Formato Adobe PDF
1.16 MB Adobe PDF Visualizza/Apri
Pubblicazioni consigliate

Caricamento pubblicazioni consigliate

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2434/150624
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 2
  • ???jsp.display-item.citation.isi??? 3
social impact