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Inertially aided GPS based attitude heading reference system (AHRS) for general aviation aircraft
| Content Provider | Semantic Scholar |
|---|---|
| Author | Hayward, Roger C. Gebre-Egziabher, Demoz Schwall, Matt Wilson, John Powell, J. David |
| Copyright Year | 1997 |
| Abstract | GPS was used with ultra-short baselines (2-3 carrier wavelengths) in a triple antenna configuration to obtain attitude for General Aviation (GA) aircraft. Through algorithm selection and error source calibration, accuracies of 0.1°, 0.15° and 0.2° rms were obtained for pitch roll and yaw respectively. The accuracy and robustness of the system was enhanced by combining the ultra short-baseline GPS attitude solution with an attitude solution derived using inexpensive automotive grade rate gyros. The solid state gyros allow coasting through temporary GPS outages lasting 2 minutes with attitude errors less than 6 degrees. The combined GPS-inertial system has a 20Hz output sufficient to drive glass cockpit type displays. A prototype system was built and flight tested in a Beechcraft Queen Air. The system installed and flight tested in the Queen Air compares favorably to the performance of the existing vacuum driven instruments. It is currently being used in ongoing research at Stanford with futuristic high resolution displays[1]. |
| Starting Page | 289 |
| Ending Page | 298 |
| Page Count | 10 |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://web.stanford.edu/group/scpnt/gpslab/pubs/papers/Hayward_IONGPS_1997_ahrs_for_ga.pdf |
| Alternate Webpage(s) | http://waas.stanford.edu/papers/Hayward_IONGPS_1997_ahrs_for_ga.pdf |
| Alternate Webpage(s) | http://einstein.stanford.edu/gps/PDF/ahrs_for_ga_rch97.pdf |
| Alternate Webpage(s) | http://waas.stanford.edu/~wwu/papers/gps/PDF/ahrs_for_ga_rch97.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
