July 29, 2002

by Guner Arslan, The University of Texas at Austin

1. Circular buffers are implemented in software by actually shifting the values in the buffer locations circularly. (T/F)
2. Enumerate steps in setting up a circular buffer.
3. A window method is an optimal filter design technique. (T/F)
4. The Remez Algorithm uses an Analog to Digital Transformation to design digital filters. (T/F)
5. What is the group delay in a causal linear phase FIR filter of N points?
6. How can we compensate for the group delay in the previous question?
7. Draw a direct form IIR filter structure using FIR structures.
8. Use benchmarking to find out the time taken to process a sample in a
   • C implementation
   • Assembly implementation
9. Increase the order of your filter. What happens to the time to process a sample?
10. What do you notice about the order of the FIR and IIR filters required to meet the same magnitude specification?