Fast communication: Design of maximally flat linear phase FIR notch filter with controlled null width

Authors:
Rohini Deshpande;S. B. Jain;B. Kumar
Affiliations:
Department of Information Technology, MSIT, C-4 Janakpuri, New Delhi 110058, India;Department of Electronics and Communication Engineering, IGIT, Delhi 110006, India;Department of Electronics and Communication Engineering, MSIT, New Delhi 110058, India
Venue:
Signal Processing
Year:
2008

Citing 4
Cited 2

Discrete-time signal processing

Discrete-time signal processing
Designing notch filter with controlled null width

Signal Processing
Semi-analytic method for the design of digital FIR filters with specified notch frequency

Signal Processing
Analysis and performance evaluation of an adaptive notch filter

IEEE Transactions on Information Theory

Design simplifications for bi notch filters

Analog Integrated Circuits and Signal Processing
On the design of multi notch filters

International Journal of Circuit Theory and Applications

Quantified Score

Hi-index	0.08

Visualization

Abstract

A technique for designing a maximally flat, linear phase FIR notch filter with controlled null width is presented in this paper. Design analysis is carried out with first-, third- and fifth-order zero derivative constraints of the amplitude response of the FIR filter at notch frequency. An algorithm is presented for designing maximally flat, linear phase FIR notch filter with specified null width around specified notch frequency with third-order zero derivative constraint at the notch frequency. Detailed analysis in this paper shows that the null width of a maximally flat, linear phase FIR notch filter can be controlled by suitable selection of individual zero-odd-order derivatives and also by the successive addition of zero-odd-order derivatives at the notch frequency.