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sys4405, winter 2010, midterm1
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Carleton University
Department of Systems and Computer Engineering
SYSC4405 Digital Signal Processing
Winter Semester 2010
Midterm # 1
February 4, 2010, 45 minutes.
______________________________________________________________________________
Answer the following questions
Question 1
A simplified block diagram of a DSP system is shown below. The input and output signals of the
system are both analog. Write a brief statement explaining the function performed by each of the
building blocks shown on the diagram.
Question 2
A discretetime sequence is defined as
a) Give a stem plot of x(n). The time axis should cover the range
b) Give an expression for x(n) in terms of the unit step
and delayed unit step sequences.
Question 3
Consider the analog signal
.
a) Determine the Nyquist sampling rate for
, and the folding frequency.
b) A discretetime signal
is obtained by sampling the analog signal
600 times per sec
ond. What are the frequencies in the discretetime signal
?
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 Winter '09

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