Week 4 - Conference 2, Topic 4
Encode a byte of data using any two of the following:
unipolar
polar NRZ-L
polar NRZ-I
RZ
Manchester
Manchester Differential
bipolar AMI
You can use +, 0, and - to
represent voltage levels in lieu of drawing a curve. Also please provide
the starting binary value and the name of the encoding scheme used.
ANSWER
Non-Return to Zero Level (NRZ-L) --> This encoding
uses + = 0 bit or - = 1 bit
| 1 |
0 |
1 |
1 |
0 |
1 |
0 |
| - |
+ |
- |
- |
+ |
- |
+ |
Return to Zero (RZ) this encoding uses +, -, or 0
(zero), where - = 1 bit and + = 0 bit with 0 for back to zero current
1 0 1
1 0 1 0
- 0 + 0 - 0 - 0 + 0 - 0 -
NOTE: I found a contradiction in the text book.
The text said that it the when encoding in RZ, the bits were positive
and negative like in NRZ-L however in the book they appeared to be
opposite (p. 91, last paragraph). Is the book wrong?
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