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High Integrity Multipath Mitigation Techniques for Ground Reference Stations
High Integrity Multipath Mitigation Techniques Ground Reference Stations
2015/6/29
There is an increasing demand for accuracy, integrity,continuity and availability in the ongoing develop ment of differential GPS (DGPS) techniques. DGPS performance relies on the elimination of error...
The Multipath Invariance Approach for Code Multipath Mitigation
Multipath Invariance Approach Code Multipath Mitigation
2015/6/29
The concept of multipath invariance asserts that there exist properties and/or regions of the code correlation function that do not change as a function of the multipath amplitude, delay, phase and ph...
A DME Based Area Navigation Systems for GPS/WAAS Interference Mitigation In General Aviation Applications
DME Based Area Navigation Systems GPS/WAAS Interference Mitigation Aviation Applications
2015/6/29
The Federal Aviation Administration is leading the National Airspace System modernization e ort, in part by supplanting traditional air trac services with GPS aided by the Wide and Local Area Aug- me...
Multicorrelator Techniques for Robust Mitigation of Threats to GPS Signal Quality
Multicorrelator Techniques Robust Mitigation GPS Signal Quality
2015/6/29
Many applications that utilize the Global Positioning System (GPS) demand highly accurate positioning information. Safety-critical applications such as aircraft navigation require position solutions w...
Ionosphere Spatial Gradient Threat for LAAS: Mitigation and Tolerable Threat Space
Ionosphere Spatial Gradient Threat LAAS:Threat Space
2015/6/26
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...
Noise Assessment and Mitigation for Loran for Aviation
Noise Assessment Mitigation Loran Aviation
2015/6/26
The United States released the technical report on the ability of Loran to mitigate the effects of a GPS outage in December 2004. The report indicated that the current Loran system, with reasonable up...
DME/TACAN Interference and its Mitigation in L5/E5 Bands
DME/TACAN Interference its Mitigation L5/E5 Bands
2015/6/25
The Galileo E5a/E5b signals and the GPS L5 signal lie within the Aeronautical Radionavigation Services (ARNS) band. They suffer interference from the services in this frequency band, in particular, hi...
The Impact and Mitigation of Ionosphere Anomalies on Ground-Based Augmentation of GNSS
Ionosphere Anomalies Ground-Based Augmentation GNSS
2015/6/25
This paper describes the impact that extreme ionospheric spatial gradients occurring during severe ionosphere storms have on GNSS Ground Based Augmentation Systems (GBAS) and how the U.S. Local Area A...
Mitigation of Anomalous Ionosphere Threat to Enhance Utility of LAAS Differentially Corrected Positioning Service (DCPS)
Mitigation Anomalous Ionosphere Threat LAAS Differentially Corrected Positioning Service (DCPS)
2015/6/25
Local Area Augmentation System (LAAS) can be used for both Category I (CAT I) precision approach and Differentially Corrected Positioning Service (DCPS) navigation applications. Through its support of...
Ephemeris Type A Fault Analysis and Mitigation for LAAS
Ephemeris Type Fault Analysis Mitigation LAAS
2015/6/25
The Local Area Augmentation System (LAAS) has been developed by the FAA to enable precision approach and landing operations using the Global Positioning System (GPS). Each LAAS installation provides s...