To compute the steady-state operating point, call findop
using
either of the following syntaxes:
[X,U] = findop(sys,'steady',InputLevel,OutputLevel)
[X,U] = findop(sys,spec)
To compute the states, X
, and the input, U
,
of the steady-state operating point, findop
minimizes
the norm of the error e(t) = y(t)-f(x(t), u(t)),
where:
You can specify the search algorithm and search options using
the findopOptions
option set.
The algorithm uses the following independent variables for minimization:
Because idnlarx
model states are delayed
samples of the input and output variables, the state values are the
constant values of the corresponding steady-state inputs and outputs.
For more information about the definition of nonlinear ARX model states,
see Definition of idnlarx States.