Impulse Response
A brief pulse at the input of a causal, linear, continuous, and time-invariant system generates an impulse response, a finite-duration signal. This impulse response, represented as h(t), signifies the system's reaction to a Dirac impulse.
Consequently, the impulse response encapsulates the temporal dynamics of the system, delineating its transfer function.
Figure 2: Impulse Response of a System.