Digital Signal Processing Reference
In-Depth Information
Exercise 7
(a)
Design the schematic circuit diagram of a digital filter (FIR).
(b)
How can an Si shaped pulse response be trimmed by means of a schematic circuit.
(c)
What role do the filter coefficients of a digital signal (FIR) play?
Exercise 8
(a)
Why is convolution such an important signalling process? Why does it make
filtering in the time domain possible?
(b)
How can the digital filtering of a longer lasting signal be described graphically by
convolution (see Illustration 212)?
Exercise 9
(a)
Describe the concept of a “development site” for digital filters.
(b)
How is a high-quality digital filter produced with DASY
Lab
using the convolution
module?
(c)
The filter coefficients say nothing about the real bandwidth of the digital signal.
What information is decisive in this respect?
Exercise 10
(a)
How does the ripple content come into being in the conducting state region of the
digital filter and how can it be avoided?
(b)
How can digital bandpasses be created by means of the “development site” for
digital signals?
(c)
Why cannot digital highpasses be easily created by means of DASY
Lab
?
Exercise 11
Describe what framework conditions apply for the development of digital filters.
