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Development of a rules-based advisory system for detecting off-nominal behavior of spacecraft digital autopilots
| dc.creator | Jung, Hee | |
| dc.date.accessioned | 2012-06-07T22:52:53Z | |
| dc.date.available | 2012-06-07T22:52:53Z | |
| dc.date.created | 1998 | |
| dc.date.issued | 1998 | |
| dc.identifier.uri | https://hdl.handle.net/1969.1/ETD-TAMU-1998-THESIS-J863 | |
| dc.description | Due to the character of the original source materials and the nature of batch digitization, quality control issues may be present in this document. Please report any quality issues you encounter to digital@library.tamu.edu, referencing the URI of the item. | en |
| dc.description | Includes bibliographical references (leaves 59). | en |
| dc.description | Issued also on microfiche from Lange Micrographics. | en |
| dc.description.abstract | based advisory system for detecting off-nominal behavior of spacecraft digital autopilots(DAP) in real-time. The DAP of the space shuttle is used as a simulation model for this study. Errors in attitude and attitude rate are determined from the space shuttle dynamic model, and the control torque required, by the phase plane switching logic and jet selection logic. Rules-based methods for detecting off-nominal behavior such as chattering, overshoot, and torque bias are developed. This advisory system can be used either for simulations on the ground or for onboard use by astronauts. It can also accept telemetry data and issue warning messages if significant deviations are observed between simulations and the actual behavior of the DAP. | en |
| dc.format.medium | electronic | en |
| dc.format.mimetype | application/pdf | |
| dc.language.iso | en_US | |
| dc.publisher | Texas A&M University | |
| dc.rights | This thesis was part of a retrospective digitization project authorized by the Texas A&M University Libraries in 2008. Copyright remains vested with the author(s). It is the user's responsibility to secure permission from the copyright holder(s) for re-use of the work beyond the provision of Fair Use. | en |
| dc.subject | aerospace engineering. | en |
| dc.subject | Major aerospace engineering. | en |
| dc.title | Development of a rules-based advisory system for detecting off-nominal behavior of spacecraft digital autopilots | en |
| dc.type | Thesis | en |
| thesis.degree.discipline | aerospace engineering | en |
| thesis.degree.name | M.S. | en |
| thesis.degree.level | Masters | en |
| dc.type.genre | thesis | en |
| dc.type.material | text | en |
| dc.format.digitalOrigin | reformatted digital | en |
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