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180 Chapter 7
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 2
transition 1 state backward
Example 1
transition 1 state forward
Example 3
transition 2 states forward
Example 4
no transition
xx
Example Data Offset
Value
1 00000000 +1
2 00000001 −1
3 00000010 +2
4 00000011 0