Edge artifacts in frequency-domain Moving Average filter

1. Which filter is moving average filter?
2. What is overshoot artifacts?
3. What will be the response of a moving average filter of an impulse response?
4. What is an artifact in signal processing?

Which filter is moving average filter?

The moving average filter is a special case of the regular FIR filter. Both filters have finite impulse responses. The moving average filter uses a sequence of scaled 1s as coefficients, while the FIR filter coefficients are designed based on the filter specifications. They are not usually a sequence of 1s.

What is overshoot artifacts?

Another artifact is overshoot (and undershoot), which manifests itself not as rings, but as an increased jump at the transition. It is related to ringing, and often occurs in combination with it.

What will be the response of a moving average filter of an impulse response?

The moving average filter has an impulse response = rectangular function rect(.). From Lecture 3, slide 6, we have learned that the Fourier transform of a rectangular function is of the form of sin(x)/x, (or sinc(x)). Shown here is the frequency response of the moving average filter for different number of taps.

What is an artifact in signal processing?

In natural science and signal processing, an artifact or artefact is any error in the perception or representation of any information introduced by the involved equipment or technique(s).