Question

QUESTION THREE With the aid of a diagram define impulse response fully using correct 141 a) Notation 141 Find the impulse response of a discrete time accumulator b) 15) c) Derive the convolution sum esent the operations in cji) with a diagram and explain the importance of an impulse response to a discrete time L.TI system 16) in) Consider a causal L.TI discrete-time system with an impulse response h1n1-r 비nl where pct Determine the output sequence yln] 161 for a causal input x[n]-a" μ[n], with irl 1

Answer 1

) Tmpuse sespon se The m pul se sponse ob a linea System heCT) is the output. 어 the system at time t to an impulse time 个 SCt) hct,o) 0 hCtıて step cs ponse 2) dibbenentjate Impulse Cs po nse

Special Symbol heC9.J to denote the system output when the input is sn- s), No use the Superposition to detcr mine the espon seto geneal input siqnal x] て