Second-Order IIR Notch Filter Design and Implementation of Digital Signal Processing System

Author:

Wang Chun Mei1,Xiao Wei Cai1

Affiliation:

1. Guangdong University of Finace

Abstract

In this paper the AC power 50Hz power interference, we use IIR digital notch filter method for industrial frequency interference filter. From the design of IIR digital filter method proceed with, on the IIR digital notch filter simulation, the algorithm deduced, on the fixed-point DSP programming method and overflow handling problems made elaborate incisively, and in digital audio signal processing system has been applied.

Publisher

Trans Tech Publications, Ltd.

Reference9 articles.

1. H. B, Ju, Research and design based on notch filter active power filter [D]; Shandong University; (2010).

2. R. Jiang, Research and Design of airborne low frequency narrowband filter [D]; Henan Polytechnic University; (2011).

3. B. Peng, Multi-channel linear phase uniform filter bank and the approximate wavelet filter bank [D]; Xi'an University of Electronic Science and Technology; (2009).

4. Z.Z. Yang, A fractional differential IIR filter design methods and improvements [J]; modern electronic technology, 2009, 32 (2) : 54-58.

5. SONG Yi-jun, LI Wen-yuan, SONG Yao-liang. The fractional IIR and FIR filter and their inverse systems[J]. JOURNAL OF CIRCUITS AND SYSTEMS, 2011, 16(6)41-45.

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