Agilent Technologies Signal Analyzer N9030a - Manual (Page 117)

3 Programming the Analyzer
Remote Measurement Functions
the first burst in each frame. The command can also be used to identify the best curve fit for the
data.
Remote Command :CALCulate:DATA:COMPress? BLOCk | CFIT | MAXimum | MINimum | MEAN |
DMEan | RMS | RMSCubed | SAMPle | SDEViation | PPHase [,[,
[,[,]]]]
Example To query the mean power of a set of GSM bursts:
l
Supply a signal that is a set of GSM bursts.
l
Select the IQ Waveform measurement (in IQ Analyzer Mode).
l
Set the sweep time to acquire at least one burst.
l
Set the triggers such that acquisition happens at a known position relative to a burst.
l
Then query the mean burst levels using, CALC:DATA2:COMP? MEAN, 24e–6, 526e–6 (These
parameter values correspond to GSM signals, where 526e–6 is the length of the burst in the
slot and you just want 1 burst.)
Notes The command supports 5 parameters. Note that the last 4 (,,,
) are optional. But these optional parameters must be entered in the specified order. For
example, if you want to specify , then you must also specify . See details
below for a definition of each of these parameters.
This command uses the data in the format specified by FORMat:DATA, returning either binary or
ASCII data.
Initial S/W Revision Prior to A.02.00
Option Description
BLOCk Block data
Returns all the data points from the region of the trace data that you specify. For example, it could be
used to return the data points of an input signal over several timeslots, excluding the portions of the
trace data that you do not want. (The points are x,y pairs for trace data, or I,Q pairs for complex data.)
CFIT Curve fit
Applies curve fitting routines to the data. and are required to define the data that
you want. is an optional parameter for the desired order of the curve equation. The query
returns the following values: the x-offset (in seconds) and the curve coefficients ((order + 1)
values).
MINimum
( "Note 1" on
page 120 )
Returns the minimum data point (y value) for the specified region(s) of trace data. For I/Q trace data,
the minimum magnitude of the I/Q pairs is returned.
MAXimum
( "Note 1" on
page 120 )
Returns the maximum data point (y value) for the specified region(s) of trace data. For I/Q trace data,
the maximum magnitude of the I/Q pairs is returned.
Remote Language Compatibility Measurement Application Reference 117