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Page 12 of 25 18.Consider a talking book where the original audio has a bandwidth (
1,000 Hz and is sampled at 3,000 times a second. Let each sample be
quantized to 16 levels. How many seconds could a memory of 120,000 bits
a. 10 ms.
b. 1 second.
c. 2 seconds.
d. 5 seconds.
e. 10 seconds.
19.What Nyquist sampling rate is needed for the analog signal ( )
a. 100 Hz
b. 200 Hz
c. 300 Hz
d. 400 Hz
e. 600 Hz
Several 3-bit data words have a parity bit appended to them prior to
transmission to create 4-bit code words. The following message is received:
20.Which 4-bit word most likely contains a bit error?
a. The first.
b. The second.
c. The third.
d. The fourth.
e. There does not appear to be any errors. Page 13 of 25 Consider the two signals shown in these two graphs, where the peak voltage
is the same but the period of the bottom function is half the period of the
top function. For the top function, the RMS voltage is ()
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This test prep was uploaded on 03/22/2014 for the course ECE 110 taught by Professor Staff during the Fall '08 term at University of Illinois, Urbana Champaign.
- Fall '08