SYSTEMS AND METHODS FOR REDUCING ERROR DETECTION LATENCY IN LPV APPROACHES

摘要

Systems and methods for reducing error detection latency in LPV approaches are provided. In certain embodiments, a method for navigational guidance includes calibrating inertial measurements acquired from an inertial navigation system with satellite-based augmentation system position measurements acquired from a satellite-based augmentation system to create corrected inertial navigation system positions. The method also includes determining whether the satellite-based augmentation system experienced a fault when the inertial measurements were calibrated with the satellite-based augmentation system position measurements. Further, when the satellite-based augmentation system did not experience a fault, the method includes monitoring the satellite-based augmentation system navigation position measurements based on the corrected inertial navigation system positions.

主权项

1. An aircraft landing system on an aircraft, the system comprising:
an inertial navigation system configured to make inertial measurements of motion for the aircraft; a satellite-based augmentation system configured to provide satellite-based augmentation system position measurements of the aircraft; and a processor configured to receive the inertial measurements from the inertial navigation system and receive the satellite-based augmentation system position measurements from the satellite-based augmentation system, wherein the processor executes instructions that cause the processor to:
calibrate the inertial measurements to the satellite-based augmentation system position measurements;determine whether the satellite-based augmentation system experienced a fault when the inertial measurements were calibrated with the satellite-based augmentation system position measurements; andwhen the satellite-based augmentation system did not experience a fault, monitor the satellite-based augmentation system navigation position measurements based on the calibrated inertial measurements.