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High Integrity Carrier Phase Navigation for Future LAAS Using Multiple Civilian GPS Signals
High Integrity Carrier Phase Navigation LAAS Multiple Civilian GPS Signals
2015/6/29
In near future, there will be two more civilian GPS signals,at 1227.60 MHz and 1176.45 MHz, in addition to thepresent one at 1575.42 MHz. Of many possible benefits from the three civilian signal...
Radio Frequency Interference Validation Testing for LAAS using the Stanford Integrity Monitor Testbed
Radio Frequency LAAS tanford Integrity Monitor Testbed
2015/6/26
Since GPS signals have very low received power levels (−130 dBm, or −160 dBW), their vulnerability to RF Interference (RFI) is a serious concern. This is particularly true for GPS-based sa...
Ionosphere Threat to LAAS: Updated Model,User Impact,and Mitigations
Ionosphere Threat LAAS Updated Model
2015/6/26
Several severe ionosphere storms have occurred in recent years that tripped the WAAS storm detector and caused partial WAAS service shutdowns. Under extreme conditions, these spatial gradients can thr...