Nonlinear Dynamic Inversion-Based Guidance and Control for a Pinpoint Mars Entry

2008 ◽  
Author(s):  
Tiago Hormigo ◽  
João Araújo ◽  
Francisco Câmara
Keyword(s):  
Nonlinear Dynamic ◽  
Dynamic Inversion ◽  
Guidance And Control ◽  
And Control ◽  
Nonlinear Dynamic Inversion

scholarly journals A nonlinear dynamic inversion-based neurocontroller for unmanned combat aerial vehicles during aerial refuelling

2013 ◽  
Vol 23 (1) ◽  
pp. 75-90 ◽  
Author(s):  
Jimoh Olarewaju Pedro ◽  
Aarti Panday ◽  
Laurent Dala
Keyword(s):  
Nonlinear Dynamic ◽  
Dynamic Properties ◽  
Control Strategies ◽  
Time Domain Analysis ◽  
Dynamic Inversion ◽  
Centre Of Gravity ◽  
Aerial Vehicle ◽  
Six Degree Of Freedom ◽  
And Control ◽  
Nonlinear Dynamic Inversion

The paper presents the development of modelling and control strategies for a six-degree-of-freedom, unmanned combat aerial vehicle with the inclusion of the centre of gravity position travel during the straight-leg part of an in-flight refuelling manoeuvre. The centre of gravity position travel is found to have a parabolic variation with an increasing mass of aircraft. A nonlinear dynamic inversion-based neurocontroller is designed for the process under investigation. Three radial basis function neural networks are exploited in order to invert the dynamics of the system, one for each control channel. Modal and time-domain analysis results show that the dynamic properties of the aircraft are strongly influenced during aerial refuelling. The effectiveness of the proposed control law is demonstrated through the use of simulation results for an F-16 aircraft. The longitudinal neurocontroller provided interesting results, and performed better than a baseline nonlinear dynamic inversion controller without neural network. On the other hand, the lateral-directional nonlinear dynamic inversion-based neurocontroller did not perform well as the longitudinal controller. It was concluded that the nonlinear dynamic inversion-based neurocontroller could be applied to control an unmanned combat aerial vehicle during aerial refuelling.

scholarly journals Time-Delay Robust Nonlinear Dynamic Inversion for Chaos Synchronization with Application to Secure Communications

2015 ◽  
Vol 2015 ◽  
pp. 1-9 ◽  
Author(s):  
Eunro Kim ◽  
Inseok Yang ◽  
Dongik Lee
Keyword(s):  
Time Delay ◽  
Nonlinear Dynamic ◽  
Secure Communication ◽  
Chaos Synchronization ◽  
Chaotic Behavior ◽  
Control Technique ◽  
Delay Systems ◽  
Dynamic Inversion ◽  
Synchronization Problem ◽  
Nonlinear Dynamic Inversion

The time-delay robust nonlinear dynamic inversion (TDRNDI) control technique is proposed to synchronize time-delay Chen systems. The time-delay Chen circuit is simple but exhibits complex irregular (chaotic) behavior. For this reason, this circuit can be efficiently used to encrypt messages for secure communication. In this paper, the nonlinear control-based chaos synchronization problem is considered. The proposed TDRNDI controller is a modified version of a robust nonlinear dynamic inversion (RNDI) applicable to chaotic systems, including time-delay systems. The performance and feasibility of the proposed TDRNDI controller are demonstrated by conducting numerical simulations with application to a secure communication network.

Reentry Flight Controller Design Using Nonlinear Dynamic Inversion

2003 ◽  
Vol 40 (1) ◽  
pp. 64-71 ◽  
Author(s):  
R. R. da Costa ◽  
Q. P. Chu ◽  
J. A. Mulder
Keyword(s):  
Nonlinear Dynamic ◽  
Controller Design ◽  
Dynamic Inversion ◽  
Nonlinear Dynamic Inversion
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