Biomedical Engineering Reference
In-Depth Information
(
a
)
time
(
b
)
(
c
)
(
d
)
Fig. 3.17.
Aliasing error.
a
The original signal.
b
Sampling under the Nyquist rate.
c
The sampled data.
d
The low-frequency artifact
An instantaneous value of the magnitude of the continuous analog signal
is quantized by the A/D converter and stored as discrete digital data at each
sampling point. The minimum quantization of an A/D converter
q
is given
