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The use of differential GPS is becoming increasingly popular for real-time navigation systems. As these systems migrate to safety-of-life applications (e.g. precision approach and landing), their inte...
Further Development of Galileo-GPS RAIM for Vertical Guidance
Further Development Galileo-GPS RAIM Vertical Guidance
2015/6/25
With the much anticipated deployment of Galileo, a new partner will rise on the sky of Global Navigation Satellite Systems (GNSS). Equally anticipated is the launch of the modernized block III GPS sat...
In the next ten years the number of pseudorange sources and their quality is expected to increase dramatically:The United States is going to add two new civil frequencies (L5 and L2C) in the modernize...
Multiple Hypothesis RAIM with Real-Time FDE and Forecasted Availability for Combined Galileo-GPS Vertical Guidance
Multiple Hypothesis RAIM Real-Time FDE Forecasted Availability Galileo-GPS Vertical Guidance
2015/6/25
The number of ranging sources for the aviation user is expected to increase with the Galileo system becoming fully operational over the next decade, and the projected launch of a modernized GPS III co...
Multi-Fault Tolerant RAIM Algorithm for Hybrid GPS/TV Positioning
Multi-Fault Tolerant RAIM Algorithm Hybrid GPS/TV Positioning
2015/6/25
Terrestrial communication signals, such as television, cel-lular and wireless LAN signals, have been pursued as ranging sources for deeper penetration into urban and in door areas.
An Optimized Multiple Hypothesis RAIM Algorithm forVertical Guidance
Optimized Multiple Hypothesis RAIM Algorithm Vertical Guidance
2015/6/25
For several years, Receiver Autonomous Integrity Monitoring (RAIM) has been used successfully for horizontal positioning in the phases of flight with Protection levels on the order of several hundreds...
Validation of Multiple Hypothesis RAIM Algorithm Using Dual-frequency GNSS Signals
RAIM Algorithm Dual-frequency GNSS Signals
2015/6/25
A Multiple Hypothesis Solution Separation (MHSS) RAIM algorithm was developed at Stanford in recent years, with the purpose of meeting the stringent integrity requirements imposed by the Federal Aviat...
Hysteresis in RAIM
Hysteresis RAIM
2015/6/25
Absolute RAIM algorithms proposed for vertical guidance are based on a snapshot approach. At a given time, each satellite has a probability of being in a faulted state which does not depend on how lon...
Prototyping Advanced RAIM for Vertical Guidance
Prototyping Advanced RAIM Vertical Guidance
2015/6/25
In the next decade, the GNSS environment is going to undergo a major transformation. First, two more GNSS core constellations are expected to be launched, Galileo and Compass. When these constellation...
Demonstrations of Multi-Constellation Advanced RAIM for Vertical Guidance using GPS and GLONASS Signals
Multi-Constellation Advanced RAIM Vertical Guidance GPS GLONASS Signals
2015/6/24
In the near future, many more navigation satellites with dual frequency L1 and L5 will be deployed. The increased number of satellites and the possibility of mitigating the ionospheric delay using dua...
Advanced RAIM Demonstration using Four Months of Ground Data
Advanced RAIM Demonstration Months Ground Data
2015/6/24
In the near future, many more navigation satellites with dual frequency L1 and L5 will be deployed. The increased number of satellites and the possibility of mitigating the ionospheric delay using dua...
A Proposal for Multi-Constellation Advanced RAIM for Vertical Guidance
Proposal Multi-Constellation Advanced RAIM Vertical Guidance
2015/6/24
The GNSS environment will experience major changes in the coming years. GPS and GLONASS are undergoing modernization phases, while Galileo and Compass are currently in their deployment phase.
Advanced RAIM User Algorithm Description:Integrity Support Message Processing, Fault Detection, Exclusion, and Protection Level Calculation
Advanced RAIM Algorithm Description Integrity Support Message Processing Fault Detection Exclusion Protection Level Calculation
2015/6/24
Advanced RAIM (ARAIM) for vertical guidance has attracted considerable attention both from integrity providers and receiver manufacturers, due to its potential to achieve worldwide coverage of vertica...
In the next decade, several important developments will have a major impact on civil aviation: the deployment of Galileo and Compass, the modernization of GPS, and the fact that all these core constel...
Incorporating GLONASS into Aviation RAIM Receivers
Incorporating GLONASS Aviation RAIM Receivers
2015/6/24
Recently the Russian government issued a mandate on the use of their GLObal NAvigation Satellite System (GLONASS) for Russian operated aircraft [1]. There is some concern and uncertainty both in exact...