Analog Systems

In linear time-invariant (LTI) systems, the input \(x[n]\) and impulse response \(h[n]\) can be interchanged mathematically due to the commutative property of discrete convolution.

In linear time-invariant (LTI) systems, the input \(x(t)\) and impulse response \(h(t)\) can be interchanged mathematically due to the commutative property of convolution.

The convolution method for finding the zero-state response \(y(t)\) of a system to an input \(x(t)\) applies to linear time-invariant (LTI) systems. The system is assumed to be described by its impulse response \(h(t)\).