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EE#301 Signal and Systems Tutorial#1 Eng. Mohammed Al alShaykh

Q1) Given the continuous‐time (CT) and discrete‐time (DT) signals x(t) and x(n) shown below, sketch and label

carefully the signals in (a),(b), and (c). [Note: u(t), u(n) denote the CT and DT unit step signals respectively]

(a) (i) y(t) = x[(-2t+4)]

(ii) y(t) = x(t)[u(-t+3) – u(t+3)]

(b) y[n] = x[2n2 +1]

(c) For the following x(t) and x[n] find:-

(i) y(t)=2x(2t+1)

EE#301 Signal and Systems Tutorial#1 Eng. Mohammed Al alShaykh

(ii) y[n] = x[3n+1] u[n]

Q2) Evaluate the following