The Tunnel Structural Mode Frequency Characteristics Identification and Analysis Based on a Modified Stochastic Subspace Identification Method

<div>The comparison of the stability diagram of the data collected at daytime: (a) NExT-SSI-COV method; (b) traditional SSI-COV method.</div>

Shock and Vibration

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Figure 6

Figure 6: The Tunnel Structural Mode Frequency Characteristics Identification and Analysis Based on a Modified Stochastic Subspace Identification Method 

Figure 6 | The Tunnel Structural Mode Frequency Characteristics Identification and Analysis Based on a Modified Stochastic Subspace Identification Method 