A NOTE ON THE FIR APPROXIMATION OF A FRACTIONAL SAMPLE DELAY

被引：14

作者：

MINOCHA, S ^{[1
]}

ROY, SCD ^{[1
]}

KUMAR, B ^{[1
]}

机构：

[1] DELHI INST TECHNOL,DEPT ELECTR & COMMUN ENGN,DELHI 110006,INDIA

来源：

INTERNATIONAL JOURNAL OF CIRCUIT THEORY AND APPLICATIONS | 1993年 / 21卷 / 03期

关键词：

D O I：

10.1002/cta.4490210306

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：

Delay is an essential operation in signal processing. In digital systems the delay of a signal wave-form by an integer number of samples at the current sampling rate can be trivially realized as a cascade of unit delays in the network. This paper presents a simplified alternative derivation of Liu and Wei's programmable fractional sample delay filter based on Lagrange's interpolation formula. A closed-form compact expression is derived for the coefficients of such a filter and it is shown that the equal-interval case gives the same results as obtained by using Newton's interpolation method.

引用

页码：265 / 274

页数：10

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