1.4. Sketch the continuous-time signals in parts (a) to (c). (a) x(t) = u(t + 1) − 2u(t − 1) + u(t − 3) (b) x(t) = (t + 1)u(t − 1) − tu(t) — u(t − 2) (c) x(t) = 2(t− 1)u(t − 1) — 2(t − 2)u(t − 2) + 2(t − 3)u(t − 3) (d) Use MATLAB to plot the signals defined in parts (a) to (c).

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1.4. Sketch the continuous-time signals in parts (a) to (c).
(a) x(t) = u(t + 1) − 2u(t − 1) + u(t − 3)
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(b) x(t) = (t + 1)u(t − 1) − tu(t) — u(t − 2)
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(c) x(t) = 2(t− 1)u(t − 1) – 2(t − 2)u(t − 2) + 2(t − 3)u(t − 3)
(d) Use MATLAB to plot the signals defined in parts (a) to (c).
Transcribed Image Text:1.4. Sketch the continuous-time signals in parts (a) to (c). (a) x(t) = u(t + 1) − 2u(t − 1) + u(t − 3) - (b) x(t) = (t + 1)u(t − 1) − tu(t) — u(t − 2) - (c) x(t) = 2(t− 1)u(t − 1) – 2(t − 2)u(t − 2) + 2(t − 3)u(t − 3) (d) Use MATLAB to plot the signals defined in parts (a) to (c).
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