![Rohde & Schwarz EVSG-B1 User Manual Download Page 199](http://html.mh-extra.com/html/rohde-and-schwarz/evsg-b1/evsg-b1_user-manual_1477820199.webp)
GBAS/SCAT-I Mode (Options R&S
EVSG-K4/-K5)
R&S
®
EVSG1000
199
User Manual 1178.6227.02 ─ 06
The R&S
EVSG GBAS/SCAT-I option provides XML files for all currently supported
GBAS/SCAT-I message types, as shown in
Table 6-3: Provided XML files for GBAS/SCAT-I message types
Message type
Description
Reference
GBAS-MT1
Pseudo-range corrections – 100 second
smoothed pseudo-ranges.
ICAO AN10 Vol1 / RTCA DO-246
GBAS-MT2
GBAS-related data.
ICAO AN10 Vol1 / RTCA DO-246
GBAS-MT4
Final approach segment (FAS) data.
ICAO AN10 Vol1 / RTCA DO-246
GBAS-MT11
Pseudo-range corrections – 30 second
smoothed pseudo-ranges.
ICAO AN10 Vol1 / RTCA DO-246
SCAT-I-MT1
RTCA DO-217
SCAT-I-MT4
RTCA DO-217
Burst.xml
Each GBAS bitstream consists of a number of elements. The first elements are the
same for all bursts:
●
Power stabilization (15 bits)
●
Synchronicity & ambiguity resolution (48 bits)
●
SSID (3 bits)
●
Transmission length (17 bits)
●
…
This general information is provided in the
Burst.xml
file, which is the start file for
conversion. The root element in this file is
<Gbas>
, which means the file starts with
<Gbas>
and ends with
</Gbas>
.
Within the
<Gbas>
element, a definition for each subelement (
<Element>
) is provi-
ded.
Example: Element definition in Burst.xml file
<Gbas>
<Element>
<data_content>Power Stabilization</data_content>
<data_content_short>POW_STAB</data_content_short>
<bits>000000000000000</bits>
<type>fixed</type>
</Element>
<Element>
<data_content>Sync. and Amb. Resolution</data_content>
<data_content_short>SYNC_AMB_RES</data_content_short>
<bits>000010011110000001101110001100011111101111100010</bits>
<type>fixed</type>
</Element>
...
</Gbas>
Message XML Interface