Agilent Technologies E8257D PSG User Manual page 210

Custom Real Time I/Q Baseband
Working with Differential Data Encoding
NOTE The following I/Q State Map illustrations show all possible state transitions using a particular
symbol table offset value. The actual state–to–state transition depends on the state in which
the modulation starts.
Example Data
1 00000000
2 00000001
3 00000010
4 00000011
transition 2 states forward
196
transition 1 state forward
Offset
Value
+1
−1
+2
0
Example 3
Example 1
Example 2
transition 1 state backward
Example 4
no transition
Chapter 7