A correlation method for estimating wave-number spectrum moments of fluctuations
- 1 December 1977
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 31 (11) , 783-785
- https://doi.org/10.1063/1.89547
Abstract
The covariance function of a stationary and homogeneous random field, represented by an analytic signal, is related to its wave‐number spectrum moments. By using a pair of fixed probes with an appropriately small separation, one can estimate the mean wave number and the wave‐number spectral spread. This method may be useful for the experimental study of fluctuation phenomena in plasmas, fluids, etc.Keywords
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