World Library  
Flag as Inappropriate
Email this Article

Equivalent noise resistance

Article Id: WHEBN0000041115
Reproduction Date:

Title: Equivalent noise resistance  
Author: World Heritage Encyclopedia
Language: English
Subject: Noise, List of noise topics, Effective number of bits, Simulation noise, Sound masking
Collection: Noise
Publisher: World Heritage Encyclopedia
Publication
Date:
 

Equivalent noise resistance

In telecommunication, an equivalent noise resistance is a quantitative representation in resistance units of the spectral density of a noise-voltage generator, given by R_n = \frac {\pi W_n}{k T_0} where W_n is the spectral density, k is the Boltzmann's constant, T_0 is the standard noise temperature (290 K), so kT_0 = 4.00 \times 10^{-21}\,[Ws].

Note: The equivalent noise resistance in terms of the mean-square noise-generator voltage, e2, within a frequency increment, Δ f, is given by

R_n = \frac{e^2}{4 k T_0\,\Delta f}.

 This article incorporates public domain material from the General Services Administration document "Federal Standard 1037C".

See also

This article was sourced from Creative Commons Attribution-ShareAlike License; additional terms may apply. World Heritage Encyclopedia content is assembled from numerous content providers, Open Access Publishing, and in compliance with The Fair Access to Science and Technology Research Act (FASTR), Wikimedia Foundation, Inc., Public Library of Science, The Encyclopedia of Life, Open Book Publishers (OBP), PubMed, U.S. National Library of Medicine, National Center for Biotechnology Information, U.S. National Library of Medicine, National Institutes of Health (NIH), U.S. Department of Health & Human Services, and USA.gov, which sources content from all federal, state, local, tribal, and territorial government publication portals (.gov, .mil, .edu). Funding for USA.gov and content contributors is made possible from the U.S. Congress, E-Government Act of 2002.
 
Crowd sourced content that is contributed to World Heritage Encyclopedia is peer reviewed and edited by our editorial staff to ensure quality scholarly research articles.
 
By using this site, you agree to the Terms of Use and Privacy Policy. World Heritage Encyclopedia™ is a registered trademark of the World Public Library Association, a non-profit organization.
 



Copyright © World Library Foundation. All rights reserved. eBooks from World eBook Library are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.