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Hybrid neural adaptive control for bank-to-turn missiles

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4 Author(s)
McDowell, D.M. ; Dept. of Electr. & Electron. Eng., Queen''s Univ., Belfast, UK ; Irwin, G.W. ; Lightbody, G. ; McConnell, G.

A novel hybrid neural adaptive bank-to-turn (BTT) lateral autopilot is described for a short-range command-to-line-of-sight (CLOS) surface-to-air missile. This employs a multiinput-multioutput Gaussian radial basis function (RBF) network in parallel with a constant parameter, independently regulated lateral autopilot, to adaptively compensate for roll-induced cross-coupling time-varying aerodynamic derivatives and control surface constraints, in order to achieve consistent tracking performance over the flight envelope. The hybrid neural autopilot is evaluated in three dimensional (six-degree of freedom) simulation studies against realistic pitch acceleration and roll rate profiles generated from a typical CLOS guidance scenario, and its performance compared with a carefully designed gain scheduled autopilot. The results are found to be encouraging and clearly demonstrate the potential advantages of the neurocontrol scheme

Published in:

Control Systems Technology, IEEE Transactions on  (Volume:5 ,  Issue: 3 )