Journal
JOURNAL OF INSTRUMENTATION
Volume 4, Issue -, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/1748-0221/4/12/T12012
Keywords
Systematic effects; Space instrumentation; Microwave radiometers; Instruments for CMB observations
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Funding
- UK Space Agency [ST/F011849/1] Funding Source: researchfish
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This paper describes the impact of the Planck Low Frequency Instrument front end physical temperature fluctuations on the output signal. The origin of thermal instabilities in the instrument are discussed, and an analytical model of their propagation and impact on the receivers signal is described. The experimental test setup dedicated to evaluate these effects during the instrument ground calibration is reported together with data analysis methods. Finally, main results obtained are discussed and compared to the requirements.
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