External noise sources
Noise in hyper frequencies - Origin and modeling

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E1380 V2 Article

External noise sources
Noise in hyper frequencies - Origin and modeling

Author : Gérard CACHIER

Review date: September 11, 2023 | Lire en français

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1. External noise sources

1.1 Natural electromagnetic radiation

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1.1.1 Cosmic noises

  • Cosmic radiation

    This radiation is the residue, cooled by the expansion or "big bang", of the isotropic radiation of the universe. Arno Penzias and Robert Wilson discovered it in 1965 (see archive photo 1 ), when they measured a spectral blackbody density (see...

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