Computationally more efficient for a given algorithm than an

Computationally more efficient for a given algorithm than an FIR filter. FIR filters do not have a feedback path. What are the implications of this for system stability? Is oscillation possible? Why or why not? IIR filters have a feedback path and FIR filters do not. What would you expect to be the

Solution

It depends on how the FIR is implemented .FIRs implemented as a truncated IIR might not be stable inside .

FIR is stable if all its zero is located in unit circle.

oscillation is possible for filter calculations to overflow. The term overflow oscillation , sometimes also called adder overflow limit cycle , refers to a high level .

It is not valid for zero or constant inputs.