Question

Write down four filter types and draw their frequency responses.

Answer 1

There are four filter types: FIR Filter, IIR Filter, Low-pass Filter, and High-pass Filter.

Step-by-step explanation:

The four filter types are:

1. FIR Filter
2. IIR Filter
3. Low-pass Filter
4. High-pass Filter

The frequency response of each filter type will depend on their characteristics and design. For example, the FIR filter has a frequency response that is symmetric around its center frequency, while the IIR filter has a frequency response that decays exponentially. A low-pass filter attenuates high frequencies and allows low frequencies to pass, while a high-pass filter attenuates low frequencies and allows high frequencies to pass.