MACEC
A MATLAB Toolbox for Experimental and Operational Modal Analysis
mode 1 - 1.882Hz - 1.22% 
mode 5 - 6.196Hz - 1.72% 
mode 7 - 7.156Hz - 2.47% 
B15 highway bridge: three modes, extracted from measured data using the CSI/ref method of MACEC.
Graphical User Interface: some screenshots
Main window
Defining the measurement geometry
Signal Processing
System identification
Complex mode indication function / frequency domain decomposition
Stabilization diagram
Mode shape animation
