midterm1_w10

midterm1_w10 - Carleton University Department of Systems...

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sys-4405, winter 2010, midterm1 page 1 of 2 Carleton University Department of Systems and Computer Engineering SYSC-4405 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 discrete-time 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 discrete-time signal is obtained by sampling the analog signal 600 times per sec- ond. What are the frequencies in the discrete-time signal ?
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midterm1_w10 - Carleton University Department of Systems...

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