Advances in Civil Engineering / 2019 / Article / Fig 7

Research Article

Monitoring and Identification of Vibration Frequencies on a Portion of México City Metro Line 12

Figure 7

N4SID and spectral average identified frequencies and corresponding standard deviations by month in column 6 using records from 2012 to 2018; monitoring started in 2015. Maximal and average standard deviation values reported.

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