Preliminary Experiments of GPS/INS Based Integrity Monitoring Using MSAS Differential Correction Data
نویسنده
چکیده
Japan Aerospace Exploration Agency (JAXA) has developed several GPS/INS systems called GAIA (GPS Aided Inertial navigation Avionics) for over ten years and succeeded in automatic landing of unmanned experimental vehicle in differential mode. In order to use GAIA for civil aviation, JAXA has been developing a fault detection and exclusion (FDE) software for integrity monitoring based on filter bank method. On the other hand, a Japanese satellite based augmentation system, MSAS (MTSAT Satellite-based Augmentation System) is planned to be operational in 2007, and the test signal is transmitted. A flight experiment to collect MSAS data was conducted and GPS/MSAS data were used to compute horizontal protection level (HPL). The GPS/INS filter bank method showed a reduced HPL, compare to MSAS-based HPL.
منابع مشابه
Detecting Multiple failures in GPS/INS integrated system: A Novel architecture for Integrity Monitoring
GPS is a widely used satellite navigation system. By design, there is no provision for real time integrity information within the Standard Positioning Service (SPS) which is available to the civilian community. However, in safety critical sectors like aviation, stringent integrity performance requirements must be met. This can be achieved using the GIC (GPS Integrity Channel) or RAIM (Receiver ...
متن کاملPerformance Enhancement of GPS/INS Integrated Navigation System Using Wavelet Based De-noising method
Accuracy of inertial navigation system (INS) is limited by inertial sensors imperfections. Before using inertial sensors signals in the data fusion algorithm, noise removal method should be performed, in which, wavelet decomposition method is used. In this method the raw data is decomposed into high and low frequency data sets. In this study, wavelet multi-level resolution analysis (WMRA) techn...
متن کاملGPS data correction using encoders and INS sensors
Using GPS system for positioning is subject to several sources of errors: ionosphere and troposphere delays, signal multi-path, number of visible satellites, satellite geometry/shading... A typical civilian GPS receiver provides 6-12 meters accuracy, depending on number of satellites available. This accuracy can be reduced to 1m by using a DGPS (Differential GPS) system which employs a second r...
متن کاملA Hierarchical SLAM/GPS/INS Sensor Fusion with WLFP for Flying Robo-SAR's Navigation
In this paper, we present the results of a hierarchical SLAM/GPS/INS/WLFP sensor fusion to be used in navigation system devices. Due to low quality of the inertial sensors, even a short-term GPS failure can lower the integrated navigation performance significantly. In addition, in GPS denied environments, most navigation systems need a separate assisting resource, in order to increase the avail...
متن کاملIntegrity Risk of Kalman Filter-Based RAIM
This paper introduces a new Kalman filter-based receiver autonomous integrity monitoring (RAIM) method for navigation systems that require measurement filtering over time (such as integrated GPS/INS navigation or carrier phase positioning). In contrast with existing sequential fault-detection algorithms, the proposed method is computationally efficient, straightforward to implement, and most im...
متن کامل