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Future Local Area Augmentation System (LAAS)architectures will most likely be constrained to lie on airport property. Such a system must provide protection against rare events in the GPS Signal in Spa...
A Local Area Augmentation System (LAAS) architecture has been developed to provide satellite navigation performance compliant with the stringent requirements for aircraft precision approach and landin...
The objective of Signal Quality Monitoring (SQM) is to improve integrity of the space segment of Local Area Aug mentation System (LAAS) by detecting satellite generated GPS signal faults. As seen in t...
The ionosphere spatial gradient and its temporal rate of change in the vicinity of a LAAS-equipped airport are likely to influence the architecture required to meet the Category II/III precision appro...
The ionosphere spatial gradients under extreme conditions are likely to influence the LAAS architecture,particularly for Category II/III precision approach and landing systems. In previous study, a “m...
The Local Area Augmentation System (LAAS) is a differential GPS navigation system being developed to support aircraft precision approach and landing with guaranteed accuracy, integrity, continuity and...
The original error description for the Local Area Augmentation System (LAAS) assumed unbiased measurement errors. In practice, however, satellite ranging errors may exhibit nonzero means. The LAAS err...
Several recent papers have analyzed the potential threat of severe ionosphere spatial gradients on LAAS users [1-4]. To support this work, a comprehensive methodology has been developed to analyze WAA...
All fault modes in the Local Area Augmentation System should be mitigated within the specified integrity risk allocation to guarantee the safety of a landing aircraft.However, monitoring within the LA...
The Local Area Augmentation System (LAAS) is a ground-based differential GPS system being developed to support aircraft precision approach and landing navigation with guaranteed integrity. To quantita...
Strong ionosphere storms are a potential threat for the Local Area Augmentation System (LAAS). During these storms,very large spatial gradients of ionosphere delays might cause significant errors in u...
As reported in [2,4,5], previous Stanford research has identified the potential for severe ionosphere spatial gradients to affect Local Area Augmentation System (LAAS) integrity.
The Local Area Augmentation System (LAAS) is a ground-based differential GNSS system designed to provide precision approach for aircraft landing at a LAAS-equipped airport.

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