Shock and Vibration / 2019 / Article / Tab 2

Research Article

An Introduction of a Robust OMA Method: CoS-SSI and Its Performance Evaluation through the Simulation and a Case Study

Table 2

Cov-SSI results.

Mode 1Mode 2Mode 3
(Hz)Error ()Error () (Hz)Error ()Error () (Hz)Error ()Error ()

Theoretical value7.0129Null1.12%Null19.6468Null3.15%Null28.3904Null4.55%Null
SNR = 107.03800.37%1.25%11.61%19.66630.09%3.11%1.27%28.43770.17%4.3%5.49%
SNR = 0.5NullNullNullNullNullNullNullNullNullNullNullNull