1. Short Description
The
radio frequencies received by the antennas of the GS to demodulate critical
data from satellites, can be a victim of interference, intentional or not. The
RFIDI module can use the signal quality reception parameters (such as C/N, MER,
BER), as well as other data (weather, satellite technical condition, historical
data), to detect and identify such interference.
2. Main Purpose and Benefits
The
RFIDI module evaluates the parameters related with the
quality of the received satellite signal and data in order to detect anomalies
in the communication between the Satellite and the Ground Segment, correlates
other input (e.g. weather conditions, historical reception data) and extracts
sound conclusions regarding the reason of the anomaly (e.g. possibly radio frequency interference (RF)).
3. Main Functions
The main function of this tool is to
monitor the reception parameters of the satellite signal of the ground segment
and compare them continuously with a set of parameters that can define the
"normal operation".
Whenever
the observed received signal parameters deviate from the above, the RFIDI
module raises an alert according to the predefined rules. These rules include
parameters and values for historical data, information of a malfunction of the
Satellite, weather conditions, etc.
4. Integration with other Tools
The user
can define values of the antenna reception parameters that define normal
operation as well as the values that indicate bad reception. Moreover,
the user can define the rules for the comparison of those parameters values or
other data (historical data, weather conditions, etc.) and decides whether an
alarm is produced or not and the kind of this alarm. The
above can be accomplished using the Rule design tool which is part of KR08 -
Cyber-Attack Detection Framework (CADF) designed and implemented by CERiCT.
The RFIDI module is integrated in
the 7Shield platform and cooperates with other tools. The alerts from the RFIDI are sent
to the SPGU. Alerts from the RFIDI are correlated in the G-CEP with alerts from
other modules. Alerts from RFIDI are shown in the
ENGAGE Dashboard.