The process of deriving a realizable transfer function of a digital filter by considering given frequency response specifications is known as digital filter design. The digital filters can be classified as:
Finite-duration impulse response (FIR) filter
Infinite-duration impulse response (IIR) filter
In MATLAB, there are built-in functions which can be used to design digital filters like IIR and FIR.
The different types of IIR digital filters are:
Chebyshev Type I filter
Chebyshev Type II filter
Before designing a filter, it is necessary to obtain the order of the filter. The syntax of different MATLAB functions used to obtain the order of a filter ...