An Approach To Discrete Spectrum Correction Based on Energy Centroid

Abstract:

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This paper proves that the energy centre of symmetric window function is the coordinate origin in discrete spectrum analysis. The correction formula of frequency, amplitude and phase can be obtained using this character. Simulation demonstrates that this method can correct averaged power spectrum directly with simple algorithm and fast processing speed, and the interference of negative or narrow interval frequencies has little influence on correction precision. This method is suitable for all kinds of symmetric window. But it is not suited with dense frequencies signal or continuous spectrum.

Info:

Periodical:

Key Engineering Materials (Volumes 321-323)

Edited by:

Seung-Seok Lee, Joon Hyun Lee, Ik Keun Park, Sung-Jin Song, Man Yong Choi

Pages:

1270-1273

DOI:

10.4028/www.scientific.net/KEM.321-323.1270

Citation:

D. Kang, C. Dangdang, L. Weihua, "An Approach To Discrete Spectrum Correction Based on Energy Centroid", Key Engineering Materials, Vols. 321-323, pp. 1270-1273, 2006

Online since:

October 2006

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Price:

$35.00

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