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Modal Paramter Estimation

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rmunderw

Aerospace
Joined
Feb 4, 2004
Messages
8
Location
US
Hello Everyone,

When using the poly-reference least squares complex frequency domain estimator (p-LSCF) to estimate modal parameters, you iteratively increase the model order and plot successive pole estimates on a stability diagram. In the literature it says you can only increase the model order in steps of Ni (number of inputs). Does anyone know why that is true?

For example:

RMFD - Right Matrix Fraction Description.

Capture_gsaag5.png



Is there a better place to post this question?

Regards,
 
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