Variance Noise Spectra of 1/f Noise
- 1 June 1972
- journal article
- research article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 43 (6) , 2890-2895
- https://doi.org/10.1063/1.1661613
Abstract
Experimental measurements of 1/fnoise variance fluctuations show the spectrum to depend on frequency to the −0.75 power over the frequency interval 10−5–1 Hz. The variance noise at 1 Hz is 10−14 V4/Hz in the case of current noise in a semiconductor diode, and 10−18 V4/Hz for current noise in a carbonresistor. The probability amplitude distributions of the variance for two different 1/fnoise sources have the same magnitude and skewed shape as those previously reported. That is, the variance exhibits fluctuations as large as 200% and the most probable value is much less than the mean value. For band‐limited 1/fnoise, the variance noise decreases with increasing averaging time.This publication has 5 references indexed in Scilit:
- Low-Frequency Variance NoiseJournal of Applied Physics, 1970
- 1/|f| Noise in Physical MeasurementsIEEE Transactions on Nuclear Science, 1969
- Variance Fluctuations in Flicker Noise and Current NoiseJournal of Applied Physics, 1969
- Amplitude distribution of 1/f noisePhysica, 1969
- Statistics ofNoisePhysical Review B, 1968