Routh Pade Approximation
The code derives the reduced order approximant of a desired degree for a given transfer function.
The method used is the Routh-Pade Approximation.
Computes the r-th order Routh-Pade Approximation of a given n-th order stable transfer function G, with 1<=r<=n. The denominator of the reduced model is computed using the reduced routh/gamma table. The numerator on the other hand is computed by moment matching.
Example
G=tf([1 2],[1 3 4 5])
r=2;
R=Routh_Pade(G,r)
gives the output
Transfer function:
0.5714 s + 1.143
---------------------
s^2 + 2.286 s + 2.857
引用
Janardhanan Sivaramakrishnan (2024). Routh Pade Approximation (https://www.mathworks.com/matlabcentral/fileexchange/36416-routh-pade-approximation), MATLAB Central File Exchange. 取得済み .
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