Noise and the Strong‐Signal Limit in Radio Astronomical Measurement | Zendy

H. S. Liszt | Zendy

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Noise and the Strong‐Signal Limit in Radio Astronomical Measurement

Author(s) -

H. S. Liszt

Publication year - 2002

Publication title -

publications of the astronomical society of the pacific

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.294

H-Index - 172

eISSN - 1538-3873

pISSN - 0004-6280

DOI - 10.1086/342522

Subject(s) - signal (programming language) , limit (mathematics) , noise (video) , physics , radio astronomy , radio signal , line (geometry) , acoustics , computer science , remote sensing , radio frequency , astrophysics , telecommunications , mathematics , geology , artificial intelligence , mathematical analysis , geometry , image (mathematics) , programming language

The random error of radioastronomical measurements is usually computed in theweak-signal limit, which assumes that the system temperature is sensibly thesame on and off source, or with and without a spectral line. This assumption isoften very poor. We give examples of common situations in which it is importantto distinguish the system noise in signal-bearing and signal-free regions.Comment: To appear in PASP, 2002 Octobe

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