Agilent Technologies 89410A Operator's Manual page 280

Digital Demodulation Concepts (Opt. AYA)
Another way of viewing the digital demodulation process is illustrated in the
following table:
Measurement Path for Digital Demodulation
Parameters
Time Sequence
Involved
Signal setup Range
Trigger
Frequency/span
Input
Time Corrections
Window
Memory
Pre-demodulation Pulse search
Search length
Result length
Demodulation Setup parameters
Format
Symbol rate
Filter
Result length
Sync search
Points/symbol
Clock adjust
Post-demodulation Measurement data
Display format
Scale
Marker
Normalize
22 - 6
Effect Result
Sets up basic signal Raw data
parameters required
for digital
demodulation
Determines what Input to
signal enters the demodulator
demodulator by
trimming the raw
data
Determines the Demodulated,
type of symbol-locked data
demodulation in the default
performed on the display format
input time data
Formats the data Formatted,
for display demodulated data
Notes
Any changes made
in the signal setup
parameters later in
the time sequence
require that a new
measurement be
performed
This signal is the
maximum possible
length, limited only
by memory
constraints.
The result length
derived previously
may be shortened if
desired
Changes may be
made in the display
parameters without
acquiring a new
measurement