Design of a nonlinear dynamic inversion controller for trajectory following and maneuvering for fixed wing aircraft
IR@NAL: CSIR-National Aerospace Laboratories, Bangalore
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Title |
Design of a nonlinear dynamic inversion controller for trajectory following and maneuvering for fixed wing aircraft
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Creator |
Pashilkar, AA
Ismail, Shaik Ayyagari, Ramakalyan Sundararajan, N |
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Subject |
Aircraft Stability and Control
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Description |
This paper presents the design of a robust linear
controller that can be used for trajectory following and
maneuvering of fixed-wing aircraft using Nonlinear Dynamic
Inversion (NDI) principles. The design addresses control
coupling to exploit multiple redundant controls. It can also be easily extended to state decoupling. The design procedure exploits the nature of the equations of motion written in the wind axis resulting in a cascaded linear controller structure with inner and outer loops. A systematic methodology is evolved which uses only the relevant stability and control derivatives in the control
synthesis, as opposed to the inversion of the complete nonlinear equations used in conventional NDI designs. The tuning of the control gains is based on the requirements of adequate trajectory following and robustness to control surface failures. Finally, it is shown how a series of controllers can be derived depending on the sensor complement available on the aircraft. The proposed
approach is ideal for fixed-wing Unmanned Aerial Vehicles
(UAVs).
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Date |
2013-04
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Type |
Conference or Workshop Item
PeerReviewed |
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Format |
application/pdf
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Identifier |
http://nal-ir.nal.res.in/12289/1/cp66.pdf
Pashilkar, AA and Ismail, Shaik and Ayyagari, Ramakalyan and Sundararajan, N (2013) Design of a nonlinear dynamic inversion controller for trajectory following and maneuvering for fixed wing aircraft. In: IEEE Symposium Series on Computational Intelligence, 16 Apr 2013, Singapore. |
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Relation |
http://nal-ir.nal.res.in/12289/
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