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Simulation-Based Evaluation of WAAS Performance:Risk and Integrity Factors
Simulation-Based WAAS Performance Risk Integrity Factors
2015/6/29
The Wide Area Augmentation System (WAAS) uses an array of monitor stations that combine to compute GPS user corrections over the Continental U.S. Preliminary experiments have concluded that ionospheri...
A New Approach to GPS Integrity Monitoring Using Prior Probability Models and Optimal Threshold Search
GPS Integrity Monitoring Prior Probability Models Optimal Threshold Search
2015/6/29
Current methods for GPS receiver autonomous integrity monitoring are limited by the assumptions they make. Using published studies of navigation system reliability, this paper develops a prior probabi...
High Integrity GPS-Based Precision Landing Using In Beacon Pseudolites
High Integrity GPS-Based Precision Landing Beacon Pseudolites
2015/6/29
The Integrity Beacon Landing System (IBLS), developed and tested at Stanford Universi GPS-based Category III precision landing. IBLS is a Kinematic GPS system which iIntegrity Beacon pseudolites place...
A Real-Time Architecture for Kinematic GPS Applied to the Integrity Beacon Landing System
Real-Time Architecture Kinematic GPS Applied Integrity Beacon Landing System
2015/6/29
Recent flight tests of the Integrity Beacon Landing System (IBLS) have demonstrated the feasibility of using GPS for Category III precision landing. To achieve these results, an airborne architecture ...
Precision Landing Tests with Improved Integrity Beacon Pseudolites
Precision Landing Tests eacon Pseudolites
2015/6/29
Stanford’s Integrity Beacon Landing System uses ground-based pseudo-satellite transmitters known as Integrity Beacons to resolve carrier phase ambiguities on final approach, giving IBLS both high inte...
A Comprehensive Integrity Verification Architecture for On-Airport LAAS Category III Precision Landing
Comprehensive Integrity Architecture On-Airport LAAS Category III Precision Landing
2015/6/29
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...
An Integrity Equation for Use with Space Based Augmentation Systems
Integrity Equation Space Based Augmentation Systems
2015/6/29
In recent years there has been widespread growth in the number of proposed Space Based Augmentation Systems (SBAS). Such systems are being developed by both civil authorities and commercial interests....
Ionospheric Estimation and Integrity Threat Detection
Ionospheric Estimation Integrity Threat Detection
2015/6/29
A full realization of the Wide Area Augmentation System (WAAS) is intended to provide aircraft guidance throughout the en route, terminal, non-precision and precision approach phases of ight.
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...
There has been widespread growth in the number of differential augmentation systems for GPS under development or in operation. Such systems are being developed by both civil authorities and commercial...
Satellite Autonomous Integrity Monitoring and its Role in Enhancing GPS User Performance
Satellite Autonomous Integrity Monitoring Role GPS User Performance
2015/6/29
One of the difficulties inherent in use of Global Naviga tion Satellite Systems (GNSS) for safety-critical applica tions is the need to insure user integrity in the face of an unbounded array of...
The Next Generation Integrity Monitor Testbed (IMT) for Ground System Development and Validation Testing
Generation Integrity Monitor Testbed (IMT) Ground System Validation Testing
2015/6/29
The Stanford University Integrity Monitor Testbed (IMT) is a prototype of the Local Area Augmentation System (LAAS) Ground Facility (LGF). It is used to evaluate whether the LGF can meet the integrity...
The Integrity Monitor Testbed and Multipath Limiting Antenna Test Results
Monitor Testbed Multipath Limiting Antenna Test Results
2015/6/26
The Integrity Monitor Testbed (IMT) is a prototype of the Local Area Augmentation System (LAAS) Ground Facility (LGF). It is used to evaluate the integrity and continuity requirements on the LGF for C...
LOng RAnge Navigation, Loran, is an attractive candidate to provide redundant services for GPS because of its complementary RNAV, stratum 1 timing, and data channel capabilities. However, for Loran to...
Integrity Lessons from the WAAS Integrity Performance Panel (WIPP)
Integrity Lessons WAAS Integrity Performance Panel (WIPP)
2015/6/26
The Wide Area Augmentation System (WAAS) is unlike any previous navigation system fielded by the FAA.Historically the FAA has implemented relatively simple and distributed systems. Each only affects a...