Instantaneous spectrum

被引：0
|
作者：
Meno, FM [1 ]
机构：
[1] Univ Pittsburgh, Pittsburgh, PA 15213 USA
来源：
PHYSICS ESSAYS | 1998年 / 11卷 / 01期
关键词：
spectrum; instantaneous spectrum; time-frequency distribution; uncertainty relations; signal analysis; Fourier transform;
D O I：
10.4006/1.3028766
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
A brief summary of the Fourier and other transforms is presented, and their applicability is discussed. The issue of the uncertainty relations in conjunction with these transforms is clarified; and finally, a method for obtaining the instantaneous spectrum, which corresponds to infinite resolution in time-frequency energy density distributions with zero uncertainty, is outlined.
引用
收藏
页码：60 / 68
页数：9
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