Rohde & Schwarz ESW Series, User Manual

Page: 272 / 759

Data Management
R&S
®
ESW
272 User Manual 1177.6298.02 ─ 08
Importing and exporting I/Q signals is useful for various applications:
●
Generating and saving I/Q signals in an RF or baseband signal generator or in
external software tools to analyze them with the R&S
ESW later
●
Capturing and saving I/Q signals with an RF or baseband signal analyzer to ana-
lyze them with the R&S
ESW or an external software tool later
As opposed to storing trace data, which may be averaged or restricted to peak values,
I/Q data is stored as it was captured, without further processing. The data is stored as
complex values in 32-bit floating-point format. Multi-channel data is not supported. The
I/Q data is stored in a format with the file extension
.iq.tar
. For a detailed descrip-
tion see Chapter 12.5.2, "I/Q Data File Format (iq-tar)" , on page 274.
An application note on converting Rohde & Schwarz I/Q data files is available from the
Rohde & Schwarz website:
1EF85: Converting R&S I/Q data files
The import and export functions are available in the "Save/Recall" menu which is dis-
played when you select the "Save" or "Open" icon in the toolbar.
● Import/Export Functions ........................................................................................272
● I/Q Data File Format (iq-tar) ..................................................................................274
12.5.1 Import/Export Functions
Access : "Save"/ "Open" icon in the toolbar > "Import" / "Export"
The R&S ESW provides various evaluation methods for the results of the performed
measurements. However, you may want to evaluate the data with further, external
applications. In this case, you can export the measurement data to a standard format
file (ASCII or XML). Some of the data stored in these formats can also be re-imported
to the R&S
ESW for further evaluation later, for example in other applications.
The following data types can be exported (depending on the application):
●
Trace data
●
Table results, such as result summaries, marker peak lists etc.
●
I/Q data (in applications that process I/Q data)
The following data types can be imported (depending on the application):
●
I/Q data (in applications that process I/Q data)
I/Q data can only be imported and exported in applications that process I/Q data, such
as the I/Q analyzer or other optional applications.
See the corresponding user manuals for those applications for details.
I/Q Data Import and Export