Design of IIR Multiple Notch Filters Based on All-Pass Filters
نویسنده
چکیده
A new method for the design of multiple notch filters is presented using an all-pass filter of order 2N, N being the number of notch frequencies. The all-pass filter is realized as a cascade of N second-order all-pass sections. Besides meeting the notch frequency specifications exactly, the method ensures that the realized 3-dB bandwidths are lower than those specified. Illustrative examples are given.
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تاریخ انتشار 2006