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Phase error in fast Fourier transform analysis

✍ Scribed by Huang Dishan

Publisher: Elsevier Science
Year: 1995
Tongue: English
Weight: 391 KB
Volume: 9
Category: Article
ISSN: 0888-3270
DOI: 10.1006/mssp.1995.0009

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✦ Synopsis

In this paper, by analysing a windowing signal with Fourier transform, the leakage-induced phase error is investigated, and the phase error distribution is indicated. Furthermore, a practical approach to correct leakage in a discrete frequency signal to obtain accurate phase information is presented based on an analytical method. The correction result is that the phase estimation error is reduced to within 1 degree in the given example. Some practical examples of this method are also presented.

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