Howtosignalprocessing
- What are repeated poles?
- What do you mean by recursive filter?
- What is the difference between recursive and non recursive filters?
What are repeated poles?
Repeated poles simply means there are more than one pole at the same location. If a pole is not repeated then it is a Distinct Pole. Consider the simple case of a cascade of two integrators (in s) which is similar to the cascade of two accumulators (in z).
What do you mean by recursive filter?
In signal processing, a recursive filter is a type of filter which re-uses one or more of its outputs as an input.
What is the difference between recursive and non recursive filters?
In mathematics, a nonrecursive filter only uses input values like x[n − 1], unlike recursive filter where it uses previous output values like y[n − 1].
