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Real-time parameter estimation in the frequency domain (Document No: 20000116403)
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Morelli, Eugene A. |
| Copyright Year | 2000 |
| Description | A method for real-time estimation of parameters in a linear dynamic state-space model was developed and studied. The application is aircraft dynamic model parameter estimation from measured data in flight. Equation error in the frequency domain was used with a recursive Fourier transform for the real-time data analysis. Linear and nonlinear simulation examples and flight test data from the F-18 High Alpha Research Vehicle were used to demonstrate that the technique produces accurate model parameter estimates with appropriate error bounds. Parameter estimates converged in less than one cycle of the dominant dynamic mode, using no a priori information, with control surface inputs measured in flight during ordinary piloted maneuvers. The real-time parameter estimation method has low computational requirements and could be implemented |
| File Size | 609593 |
| File Format | |
| Language | English |
| Publisher Date | 2000-09-01 |
| Access Restriction | Open |
| Subject Keyword | Aircraft Stability And Control Aircraft Models Flight Tests Fourier Transformation Simulation Research Vehicles Estimating F-18 Aircraft Frequency Domain Analysis Real Time Operation Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
