文章基本信息

标题：Butterworth Window for Power Spectral Density Estimation
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作者：Yoon, Tae-Hyun ; Joo, Eon-Kyeong
期刊名称：ETRI Journal
印刷版ISSN：1225-6463
电子版ISSN：2233-7326
出版年度：2009
卷号：31
期号：3
页码：292-297
语种：English
出版社：Electronics and Telecommunications Research Institute
摘要：The power spectral density of a signal can be estimated most accurately by using a window with a narrow bandwidth and large sidelobe attenuation. Conventional windows generally control these characteristics by only one parameter, so there is a trade-off problem: if the bandwidth is reduced, the sidelobe attenuation is also reduced. To overcome this problem, we propose using a Butterworth window with two control parameters for power spectral density estimation and analyze its characteristics. Simulation results demonstrate that the sidelobe attenuation and the 3 dB bandwidth can be controlled independently. Thus, the trade-off problem between resolution and spectral leakage in the estimated power spectral density can be overcome.
关键词：Power spectral density estimation;window;Butterworth filter