Digital Signal Processing Reference
In-Depth Information
Exercise 9
Explain why processing differentiation exhibits highpass filter behaviour and processing
integration exhibits lowpass filter behaviour?
Exercise 10
How could the system illustrated be simplified - for instance by cutting the number of
modules - without changing the properties of the system. Check whether your solution is
right using DASY
La
b.
Note: The filters must be absolutely identical
Illustration 150:
Optimizing a linear system
Exercise 11
Develop a process by means of the module „formula interpreter“ with which a sinusoidal
input voltage with the amplitude I V of any frequency f always produces a sinusoidal
output voltage with the fourfold frequency 4
∗
f. The output voltage should have an ampli-
tude of 1 V and have no offset.
Exercise 12
What role do sampling and quantization play in modern signal processing?
Exercise 13
Explain the term „convolution“. By means of what operation could „convolution“ be
caused in the time domain? Hint: Symmetry Principle.
Exercise 14
Develop a simple circuit for pure sampling (time discrete and value continuous) by
means of the module „Latch“.
Exercise 15
Develop by means of the module „formula interpreter“ a circuit for the quantization of an
input signal according to Illustration 149. It should be possible to set the quantization
anywhere from fine to „coarse“.
