An application of parameter estimation to the stability and control of the BQM-147 Unmanned Aerial Vehicle
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Authors
Quinn, Patrick John.
Subjects
Aircraft parameter estimation
Advisors
Howard, Richard M.
Date of Issue
1993-06
Date
June 1993
Publisher
Monterey, California. Naval Postgraduate School
Language
en_US
Abstract
Parameter estimation methods were used to obtain estimates of stability and control derivatives for the Marine Corps BQM-147 Unmanned Air Vehicle. The results from a simple, PC-based linear model and those from a more robust non-linear model, pEst, were compared. A Cramer-Rao bound was used to assess the accuracy of the estimates for both methods. The bounds were high for both the longitudinal case and the lateral-directional case due to the limited maneuvers tested, high levels of noise in the same general frequency range as the control input, and the lack of body-angle data. The linear model failed to provide estimates for the lateral-directional case. Though the results may be used as starting points for a dynamic model of the aircraft it is recommended that the flight test procedures be modified to address the issues raised concerning noise, recorded signals and the need for repeated maneuvers.
Type
Thesis
Description
Series/Report No
Department
Department of Aeronautics and Astronautics
Organization
Naval Postgraduate School (U.S.)
Identifiers
NPS Report Number
Sponsors
Funder
Format
121 p.
Citation
Distribution Statement
Approved for public release; distribution is unlimited.
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.