Loading...
Please wait, while we are loading the content...
Similar Documents
Adaptive control of large space structures using recursive lattice filters (Document No: 19860003890)
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Goglia, G. L. |
| Copyright Year | 1985 |
| Description | The use of recursive lattice filters for identification and adaptive control of large space structures was studied. Lattice filters are used widely in the areas of speech and signal processing. Herein, they are used to identify the structural dynamics model of the flexible structures. This identified model is then used for adaptive control. Before the identified model and control laws are integrated, the identified model is passed through a series of validation procedures and only when the model passes these validation procedures control is engaged. This type of validation scheme prevents instability when the overall loop is closed. The results obtained from simulation were compared to those obtained from experiments. In this regard, the flexible beam and grid apparatus at the Aerospace Control Research Lab (ACRL) of NASA Langley Research Center were used as the principal candidates for carrying out the above tasks. Another important area of research, namely that of robust controller synthesis, was investigated using frequency domain multivariable controller synthesis methods. |
| File Size | 6829367 |
| Page Count | 81 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19860003890 |
| Archival Resource Key | ark:/13960/t2h75988g |
| Language | English |
| Publisher Date | 1985-12-01 |
| Access Restriction | Open |
| Subject Keyword | Spacecraft Design, Testing And Performance Simulation Flexible Spacecraft Adaptive Filters Spacecraft Control Models Control Theory Feedback Control Flexibility Adaptive Control Large Space Structures 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 |
