FREQUENCY TRANSFORMATIONS FOR LINEAR-PHASE VARIABLE-CUTOFF DIGITAL-FILTERS

被引：30

作者：

DUTTAROY, SC ^{[1
]}

AHUJA, SS ^{[1
]}

机构：

[1] INDIAN INST TECHNOL,DEPT ELECT ENGN,NEW DELHI 110029,INDIA

来源：

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS | 1979年 / 26卷 / 01期

关键词：

D O I：

10.1109/TCS.1979.1084550

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：

The first-and second-order forms of a transformation for implementing a variable-cutoff linear-phase FIR filter are investigated. In the first-order case, correct constraints have been placed on the variable parameter A0; it is pointed out that the cutoff frequency increases, while the cutoff slope decreases, monotonically with increasing A0; A o = 0 corresponds to the prototype filter. The second-order transformation is shown to overcome these drawbacks without increasing the computational load or the number of variable parameters. © 1979 IEEE

引用

页码：73 / 75

页数：3