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Effects of control inputs on the estimation of stability and control parameters of a light airplane
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Cannaday, R. L. Suit, W. T. |
| Copyright Year | 1977 |
| Description | The maximum likelihood parameter estimation technique was used to determine the values of stability and control derivatives from flight test data for a low-wing, single-engine, light airplane. Several input forms were used during the tests to investigate the consistency of parameter estimates as it relates to inputs. These consistencies were compared by using the ensemble variance and estimated Cramer-Rao lower bound. In addition, the relationship between inputs and parameter correlations was investigated. Results from the stabilator inputs are inconclusive but the sequence of rudder input followed by aileron input or aileron followed by rudder gave more consistent estimates than did rudder or ailerons individually. Also, square-wave inputs appeared to provide slightly improved consistency in the parameter estimates when compared to sine-wave inputs. |
| File Size | 2345271 |
| Page Count | 74 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19780005128 |
| Archival Resource Key | ark:/13960/t3jx35h6q |
| Language | English |
| Publisher Date | 1977-12-01 |
| Access Restriction | Open |
| Subject Keyword | Aircraft Stability And Control Flight Tests Computer Programming Estimating Derivation Controllability Maximum Likelihood Estimates Aerodynamic Stability Parameterization Light Aircraft Input/output Routines Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
