Digital signal: answers
I.
Sampling a signal is equivalent to retain samples:
continuously
with a constant period
in a random way
II.
The mathematic expression of a sampled signal is:
a differential equation
a recurrence equation
a second-order equation
III.
The sample period is the period which separate:
2 periods
2 samples
2 amplitudes
IV.
The Fourier transform of a Dirac "comb" is:
a cardinal sine
a Dirac impulse
a Dirac "comb"
V.
Let follow this sampled signal,
give its sampling period:
1
500
125
Texte - Copyright © 1996, 1997 DECLE & BURTAIRE