Lyapunov redesign explained

V

. Consider the system
x

=f(t,x)+G(t,x)[u+\delta(t,x,u)]

where

x\inRn

is the state vector and

u\inRp

is the vector of inputs. The functions

f

,

G

, and

\delta

are defined for

(t,x,u)\in[0,inf) x D x Rp

, where

D\subsetRn

is a domain that contains the origin. A nominal model for this system can be written as
x

=f(t,x)+G(t,x)u

and the control law

u=\phi(t,x)+v

stabilizes the system. The design of

v

is called Lyapunov redesign.

Further reading

. Hassan K. Khalil . 2002 . 3rd . Nonlinear Systems . 0-13-067389-7 . . Upper Saddle River, NJ.