In many applications of notch filtering, short transient response and high quality factors are
very important issues. Increasing Q factor, decreases the bandwidth and improves …

A method for design of linear phase notch IIR filters is presented in this paper. The filter is
realized in the form of a parallel connection of two all-pass sub-filters. In order to achieve the …

A new method for design of recursive digital notch filter with linear phase is described in this
paper. Obtained filter is realized using parallel connection of delay line and IIR all-pass filter …

The different structures of digital notch filters realized as parallel connection of two allpass
subfilters are investigated in this paper. The research was done for notch filters with only one …

Narrow stopband filters with two notch frequencies and piecewise constant phase are
investigated in this paper. The notch filters are determined by allpass subfilter phase …

A new method for design and software realization of approximately linear phase notch filters
with magnitude characteristic symmetry is presented in this paper. The proposed …

As defined for an analog band-pass or band-stop filter, a quality factor Q is a ratio between
the center frequency f0 and the− 3dB bandwidth, which is not valid for designing a digital …