Signals and Systems (EENG 320)
Assignment (1)
fig(1)
fig(2)
1) A continuous-time signal x(t) is shown in fig(1). Sketch and label carefully each of the
following signals:
a. x(t-1)
b. x(2-t)
c. x(2t+1)
d. x(4-t/2)
e. [x(t) + x(-t)] u(t)
f. x(t) [ (t+2/3)
Signals and Systems (EENG 320)
Assignment (1)
fig(1)
fig(2)
1) A continuous-time signal x(t) is shown in fig(1). Sketch and label carefully each of the
following signals: The original signal x(t)
a. x(t-1)
b. x(2-t)
c. x(2t+1)
d. x(4-t/2)
e. [x(t) + x(-t)
Signals and Systems (EENG 320)
Assignment (2)
1) Consider a continuous time signal :
x (t ) = (t + 2) (t 2)
If a signal :
2t
y (t ) =
x( )d
a. Is y(t) an energy signal or power signal?
b. Calculate its energy and power
2) Consider the discrete time signa
Signals and Systems (EENG 320)
Assignment (3)
1) Compute the convolution y[ n] = x[ n] h[ n] of the following signals :
x[n] = nu[n]
y[n] = nu[n],
2) Compute the convolution y (t ) = x (t ) h(t ) of the following signals, sketch the result:
x (t ) = e t
Signals and Systems (EENG 320)
Assignment (4)
1- Determine the Fourier series representation for the following signals:
i. x(t ) periodic with period 2 and
x(t ) = e t
for - 1 < t < 1
ii. Each x(t ) illustrated in figures (1)-(3).
x(t)
1
-5
-3
-4
-1
1
5
3
Signals and Systems (EENG 320)
Assignment (5)
1. Use either the Fourier transform analysis and synthesis equations or the
Fourier transform properties to:
a. Compute the Fourier transform of each of the following signals:
i. [e t cos(o t )]u (t ), > 0
ii.