engineering recuitment GATE EE 2023-24 Test Series Signals and Systems Introduction To Signals and Systems
Consider a cascade system with unit step u(t) as input and h1(t) = e-2t u(t) and h2(t) = e-t u(t) respectively. The impulse response of overall system is:
1
h(t) = x2(t) e-tu(t)
2
h(t) = [e-t – e-2t]u(t)
3
h(t) = t2 e-2t u(t)
4
h(t) = 2t2 e-2t u(t)