Signal processor implementation of a low-pass/high-pass IIR digital filter with variable cutoff frequency

被引：0

作者：

Certic, J ^{[1
]}

Milic, L ^{[1
]}

机构：

[1] Univ Belgrade, Sch Elect Engn, Belgrade, Serbia Monteneg

来源：

Eurocon 2005: The International Conference on Computer as a Tool, Vol 1 and 2 , Proceedings | 2005年

关键词：

fixed-point implementation; signal processor; implementation; tunable IIR filters; variable IIR filters;

D O I：

暂无

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

A simple tuning scheme that shifts the cutoff frequency of the start-up half-band filter to the desired location has been introduced recently. In this paper, the approximation of the tuning scheme is derived in a manner that makes this scheme suitable for fixed-point and signal processor implementation. The effects of the approximation error to the filter frequency response are analyzed. The measured frequency responses for the example low-pass filters implemented in the signal processor demonstrate the real-time application of the proposed method.

引用

页码：1618 / 1621

页数：4

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