共 21 条
Wavelet basis reconstruction of nonuniformly sampled data
被引:20
作者:
Ford, C
[1
]
Etter, DM
[1
]
机构:
[1] Univ Colorado, Dept Elect & Comp Engn, Boulder, CO 80309 USA
来源:
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-ANALOG AND DIGITAL SIGNAL PROCESSING
|
1998年
/
45卷
/
08期
基金:
美国国家航空航天局;
关键词:
nonuniform sampling;
signal reconstruction;
wavelets;
D O I:
10.1109/82.718832
中图分类号:
TM [电工技术];
TN [电子技术、通信技术];
学科分类号:
0808 ;
0809 ;
摘要:
A well-documented problem in the analysis of real-world measurements is that the data may suffer from several problems, including data dropouts, an irregularly spaced sampling grid, and time-delayed sampling. These data irregularities render many traditional signal processing techniques unusable, and thus the data must be interpolated onto an even grid before scientific analysis techniques can be applied. We propose a method to perform a reconstruction of nonuniformly sampled signals using a wavelet basis fit in a multiresolutional setting. The advantage of using a wavelet basis is that we are able to not only reconstruct the signal using global information, but we are also able to take advantage of locally dense areas of sampling to reconstruct at higher resolutions.
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页码:1165 / 1168
页数:4
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