IPS presentation - IPS - Radio and Space Services
IPS presentation - IPS - Radio and Space Services
IPS presentation - IPS - Radio and Space Services
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Aviation GPS – GBAS – Ground Based Augmentation system<br />
Spatial de-correlation of ionospheric error component<br />
• Due to ionospheric gradients<br />
GNSS satellite<br />
• Limits the range of validity of the<br />
correction signals<br />
• Reduces accuracy/availability of GBAS<br />
5 observed ionospheric features observed<br />
are associated with anomalous gradients<br />
Satellite<br />
ephemeris<br />
ERRORS<br />
Clock<br />
ERRORS<br />
=<br />
=<br />
Satellite<br />
ephemeris<br />
ERRORS<br />
Clock<br />
ERRORS<br />
Ionosphere<br />
Ionospheric<br />
ERROR<br />
Ionospheric<br />
gradient<br />
Ionospheric<br />
ERROR<br />
Tropospheric<br />
ERROR<br />
Tropospheric<br />
ERROR<br />
Broadcast<br />
CORRECTION<br />
(integrated ERROR)<br />
GBAS ground station<br />
range
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