THE WIGNER DISTRIBUTION - A TOOL FOR TIME-FREQUENCY SIGNAL ANALYSIS .2. DISCRETE-TIME SIGNALS

被引：0
|
作者：
CLAASEN, TACM
MECKLENBRAUKER, WFG
机构：
来源：
PHILIPS JOURNAL OF RESEARCH | 1980年 / 35卷 / 4-5期
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中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this second part of the paper the Wigner distribution is adapted to the case of discrete-time signals. It is shown that most of the properties of this time-frequency signal representation carry over directly to the discrete-time case, but some others cause problems. These problems are associated with the fact that in general the Wigner distribution of a discrete-time signal contains aliasing contributions. It is indicated that these aliasing components will not be present if the signal is either oversampled by a factor of at least two, or is analytic.
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页码：276 / 300
页数：25
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