extall
commented
4 months ago In FOMCON, you would either use the fid function, or more appropriate to your use case, the pfid function which allows for parameteric identification of linear models. From its docstring:
% EXPR is a symbolic expression with the FOTF model structure, e.g.
%
% EXPR = 'p_1/(1+T*s^{q_1}) exp(-q_2*s)'; % Defines a FFOPDT model
% with T (time constant)
% known in advanceThe above can be used to identify a model of type
$$G_i = \frac{p_1}{1+T\cdot s^{q_1})} \cdot \text{e}^{-q_2 \cdot s}$$
where $\theta = [p_1, q_1, q_2]$ are the estimated parameters, whereas $T$ is considered known (and must be assigned in the params structure).
dinalt2006
Is there an analogue of function PROCEST in FOMCON?