Noniterative design of IIR multiple‐notch filters with improved passband magnitude response
Saša V. Nikolić, Ivan B. Krstić, Goran Stančić · International Journal of Circuit Theory and Applications · 2018
Summary A noniterative method for the all‐pass–based design of infinite impulse response multiple‐notch filters is proposed. This method ensures that specifications regarding positions of notch, left‐ and right‐hand cutoff frequencies, are exactly met, leading to a symmetric magnitude response about notch frequencies. Passband magnitude response can be improved by increasing the order of the corresponding all‐pass filter.