File Exchange

image thumbnail

SERALAB(Demo)- Simple eigensystem realization algorithm Lab

version 1.0 (3.28 MB) by

eigensystem realization algorithm (ERA)

8 Downloads

Updated

View License

The eigensystem realization algorithm (ERA) was first proposed by Juang and Pappa (1985) for modal parameter identification and model reduction of linear dynamical systems and was later refined and ERA with data correlations (ERA/DC) was formulated to handle the effects of noise and nonlinearities (Juang et al., 1988).

Comments and Ratings (3)

I think there is an important mistake in the ERA.m which should be taken into account.

In the 33rd line instead of:
ERA_A1=SS^(-0.5)*UU'*H1*VV*SS^(-0.5);
ERA_B1=SS^(-0.5)*VV'*EL';
ERA_G=EM*UU*SS^(-0.5);

should be:
ERA_A1=SS^(-0.5)*UU'*H1*VV*SS^(-0.5);
ERA_B1=SS^(0.5)*VV'*EL';
ERA_G=EM*UU*SS^(0.5);

Regards,
George

Anish Chhabra

yiyang LI

MATLAB Release
MATLAB 7 (R14)

Download apps, toolboxes, and other File Exchange content using Add-On Explorer in MATLAB.

» Watch video