Recursive QR-factorisation for N4SID - What does this equation mean?
$begingroup$
I was reading a paper about recursive subspace identification, where they are using N4SID-algorithm with some extantion for the recursive method.
http://www.iaescore.com/journals/index.php/IJEECS/article/viewFile/6557/6368
I reason why I'm asking this question, is because I don't know how to compute the right hand side of equation (9) when the rigth hand side looks like this. I can't even write this out in LaTeX becase I don't know if
$$begin{bmatrix}
u_f(psi +1) \
w_p(psi +1)\
y_f(psi +1)
end{bmatrix}$$
What does $psi$ come frome?
is a vector or not, because I cannot see any brackets in the formula. What do you think?
matrix-decomposition lu-decomposition system-identification
$endgroup$
add a comment |
$begingroup$
I was reading a paper about recursive subspace identification, where they are using N4SID-algorithm with some extantion for the recursive method.
http://www.iaescore.com/journals/index.php/IJEECS/article/viewFile/6557/6368
I reason why I'm asking this question, is because I don't know how to compute the right hand side of equation (9) when the rigth hand side looks like this. I can't even write this out in LaTeX becase I don't know if
$$begin{bmatrix}
u_f(psi +1) \
w_p(psi +1)\
y_f(psi +1)
end{bmatrix}$$
What does $psi$ come frome?
is a vector or not, because I cannot see any brackets in the formula. What do you think?
matrix-decomposition lu-decomposition system-identification
$endgroup$
add a comment |
$begingroup$
I was reading a paper about recursive subspace identification, where they are using N4SID-algorithm with some extantion for the recursive method.
http://www.iaescore.com/journals/index.php/IJEECS/article/viewFile/6557/6368
I reason why I'm asking this question, is because I don't know how to compute the right hand side of equation (9) when the rigth hand side looks like this. I can't even write this out in LaTeX becase I don't know if
$$begin{bmatrix}
u_f(psi +1) \
w_p(psi +1)\
y_f(psi +1)
end{bmatrix}$$
What does $psi$ come frome?
is a vector or not, because I cannot see any brackets in the formula. What do you think?
matrix-decomposition lu-decomposition system-identification
$endgroup$
I was reading a paper about recursive subspace identification, where they are using N4SID-algorithm with some extantion for the recursive method.
http://www.iaescore.com/journals/index.php/IJEECS/article/viewFile/6557/6368
I reason why I'm asking this question, is because I don't know how to compute the right hand side of equation (9) when the rigth hand side looks like this. I can't even write this out in LaTeX becase I don't know if
$$begin{bmatrix}
u_f(psi +1) \
w_p(psi +1)\
y_f(psi +1)
end{bmatrix}$$
What does $psi$ come frome?
is a vector or not, because I cannot see any brackets in the formula. What do you think?
matrix-decomposition lu-decomposition system-identification
matrix-decomposition lu-decomposition system-identification
edited Jan 7 at 15:38
Daniel Mårtensson
asked Jan 7 at 15:24
Daniel MårtenssonDaniel Mårtensson
916416
916416
add a comment |
add a comment |
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