An approximation for discrete B-splines in time domain

被引：16
|
作者：
Ichige, K [1 ]
Kamada, M [1 ]
机构：
[1] IBARAKI UNIV,DEPT COMP & INFORMAT SCI,HITACHI,IBARAKI 316,JAPAN
来源：
IEEE SIGNAL PROCESSING LETTERS | 1997年 / 4卷 / 03期
关键词：
D O I：
10.1109/97.558645
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 simple discrete version of B-splines defined as a multifold discrete convolution of sampled rectangles Is proposed in the analogy of B-splines being multifold convolution integrals of rectangular functions. Then it is proven that its staircase interpolation tends to the B-spline when the sampling interval goes to zero, This version can be regarded as an approximation for the discrete B-splines established in the literature, and it is faster in numerical evaluation.
引用
收藏
页码：82 / 84
页数：3
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