Unformatted text preview: 6. What is companding? Why is it used? Why is it preferable to quantizing with tapered steps? Illustrate your answer with a sketch of typical companding curves. 7. What are the advantages and applications of pulse-code modulation? 8. Calculate the minimum number of bits of information which must be given to permit the correct selection of one event out of (a) 32 and (b) 47 equiprobable events. 9. What is the number of bits of information required to indicate the correct selection of 3 independent, consecutive events out of 75 equiprobable events? EET 029 - Introduction to Communications Copyright © Electrical Engineering Department, KFUPM....
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- Spring '09
- Pulse-width modulation, Pulse-amplitude modulation, Pulse-density modulation, Pulse-code modulation