How Do You Calculate Impulse Response Of LTI? The impulse response for an LTI system is the output, y ( t ) y(t) y(t), when the input is the unit impulse signal, σ ( t ) sigma(t) σ(t). In other words, when x ( t ) = σ ( t ) , h ( t
What Is An Impulse Response Of A System? In signal processing, the impulse response, or impulse response function (IRF), of a dynamic system is its output when presented with a brief input signal, called an impulse. More generally, an impulse response refers to the reaction of any dynamic system in response to some external change.