Question

What is the disadvantage of impulse invariant method?

Answer 1

Explanation:

The disadvantage of the impulse invariance method is the unavoidable frequency-domain aliasing.

Answer 2

Impulse invariant method:

• The Impulse Invariance Method is used to create a discrete filter with a frequency response that is comparable to that of an analog filter.
• The disadvantage of the impulse invariant method is:
• The frequency-domain aliasing that is unavoidable with the impulse invariance method is a drawback.
• The Bilinear Transformation (Continued) Note that the bilinear transformation has no aliasing impact.