Given, input u and output y of linear system and it's order, the function find the Numerator N and Denominator D.
u : input signal of the system
y : Output signal of the system
n : système order
k1,k2 indices of the first value and the last of vector y.
[N,D]=mcar(u,y,n) the program allows to choose k1 and k2
Important: If the input signal is a constant or a system is instable, the result will be Nan. an idéal input is a random signal.
Azzi Abdelmalek (2022). Identification by least square method (https://www.mathworks.com/matlabcentral/fileexchange/37631-identification-by-least-square-method), MATLAB Central File Exchange. Retrieved .
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