6.2. AIM+: USING THE SPECTRUM ANALYSER TO
DETECT AND MITIGATE INTERFERENCE
6.2.2 Wideband interference mitigation
Wideband interference of GNSS signals can be caused unintentionally by military and civilian
ranging and communication devices. There are also intentional sources of interference from
devices such as chirp jammers. The wideband interference mitigation system (WBI) of the
AsteRx-U can reduce the effect of both types of interference on GNSS signals.
Configuring WBI mitigation
The wideband interference mitigation system (WBI) can be enabled by selecting ‘on’ as shown
in Figure 6-5.
Figure 6-5: Select ‘on’ to enable wideband interference mitigation then ‘OK’ to
apply the new setting.
WBI mitigation in action
The GPS L1 band interference shown in Figure 6-6 is produced by combining the GNSS
antenna signal with the output from an in-car GPS chirp jammer.
Figure 6-6: Simulated wideband interference in the GPS L1 band using an in-car
chirp jammer.
64
To Next Page
Loading...
