Many-knot spline technique for approximation of data

被引：0
|
作者：
齐东旭
李华山
机构：
来源：
Science China Technological Sciences | 1999年 / 04期
基金：
中国国家自然科学基金;
关键词：
many-knot spline; cardinal interpolation; data smoothing; curve fitting; two-scale relation;
D O I：
暂无
中图分类号：
O174.41 [逼近论];
学科分类号：
070104 ;
摘要：
A class of new fundamental functions with compact support called many-knot spline is introduced. The two-scale relation for the fundamental functions is investigated, and the higher order accuracy spline approximation scheme is constructed by using the available degrees of freedom which come from additional knots. The technique has been efficiently applied to the problems such as time-frequency analysis, computer aided geometric design, and digital signal processing.
引用
收藏
页码：383 / 387
页数：5
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