Data Management and Documentation
R&S
®
ESRP
512
User Manual 1175.7445.02 ─ 08
Element
Description
DataFilename
Contains the filename of the I/Q data binary file that is part of the
iq-tar
file.
It is recommended that the filename uses the following convention:
<xyz>.<Format>.<Channels>ch.<Type>
●
<xyz> = a valid Windows file name
●
<Format> = complex, polar or real (see
Format
element)
●
<Channels> = Number of channels (see
NumberOfChannels
element)
●
<Type> = float32, float64, int8, int16, int32 or int64 (see
DataType
ele-
ment)
Examples:
●
xyz.complex.1ch.float32
●
xyz.polar.1ch.float64
●
xyz.real.1ch.int16
●
xyz.complex.16ch.int8
UserData
Optional: contains user, application or device-specific XML data which is not
part of the
iq-tar
specification. This element can be used to store additional
information, e.g. the hardware configuration. It is recommended that you add
user data as XML content.
PreviewData
Optional: contains further XML elements that provide a preview of the I/Q data.
The preview data is determined by the routine that saves an
iq-tar
file (e.g.
R&S
ESRP). For the definition of this element refer to the
RsIqTar.xsd
schema. Note that the preview can be only displayed by current web browsers
that have JavaScript enabled and if the XSLT stylesheet
open_IqTar_xml_file_in_web_browser.xslt
is available.
Example: ScalingFactor
Data stored as
int16
and a desired full scale voltage of 1 V
ScalingFactor
= 1 V / maximum int16 value = 1 V / 2
15
= 3.0517578125e-5 V
Numerical value
Numerical value x ScalingFac-
tor
Minimum (negative) int16 value
- 2
15
= - 32768
-1 V
Maximum (positive) int16 value
2
15
-1= 32767
0.999969482421875 V
Example: PreviewData in XML
<PreviewData>
<ArrayOfChannel length="1">
<Channel>
<PowerVsTime>
<Min>
<ArrayOfFloat length="256">
<float>-95</float>
<float>-94</float>
...
<float>-93</float>
</ArrayOfFloat>
</Min>
<Max>
<ArrayOfFloat length="256">
<float>0</float>
Saving and Recalling Settings Files – SAVE/RCL Key
