What are the steps to design IIR filter?
In general, the design of an IIR filter usually involves one or more strategically placed poles and zeros in the z-plane, to approximate a desired frequency response. An analogue filter can always be described by a frequency- domain transfer function of the general form, shown in Equation 5.1.
What is the approach to design digital IIR filter?
Digital infinite impulse response (IIR) filter design requires the optimization of set of filter coefficients which meet various specification of the filter such as pass-band width and gain, stop-band width and attenuation, edge frequencies of pass band and stop band, peak ripples in pass band and stop band, and linear ...