Computing reliable power spectra
- 1 January 1967
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Spectrum
- Vol. 4 (1) , 83-90
- https://doi.org/10.1109/mspec.1967.5217760
Abstract
Techniques of harmonic analysis have recently crystallized into modern power-spectrum analysis, the presently accepted ``best'' tool for uncovering periodicities and near-periodicities hidden in noisy data. Despite the simplicity of this concept-to electrical engineers, at least-computing a meaningful power spectrum involves several subtleties that are too easily overlooked by the nonspecialist. This article presents an elementary review of such pit-falls and of their origins.Keywords
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