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Journal of Applied Physics / Volume 41 / Issue 8

J. Appl. Phys. 41, 3274 (1970); http://dx.doi.org/10.1063/1.1659410 (3 pages)

Phenomenological Approach to Low‐Frequency Electrical Noise

S. Teitler and M. F. M. Osborne

Naval Research Laboratory, Washington, D. C. 20390

(Received 2 February 1970)

A phenomenological description of excess noise in a nonequilibrium system is presented. The development involves two basic physical ideas. Firstly, the excess noise is ascribed to the fluctuation of the local reference level to which equilibrium and other white fluctuations are compared. Secondly, it is assumed that excess low‐frequency noise involves a nonlinear process. This implies the noise power in different frequency regions are coupled. A further simple assumption requires the integral of the power spectral density over specially chosen intervals to be a constant. This leads to a 1∕f spectrum for the power spectral density. Possible generalizations that provide for other spectral laws are also mentioned.

© 1970 The American Institute of Physics

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.1659410

PUBLICATION DATA

ISSN

0021-8979 (print)  
1089-7550 (online)

Publisher

$abstract.society.value is a Member of CrossRef The American Institute of Physics

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