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This technique is used for some modal tests with a shaker excitation to reject non-linear phenomena. In this case, the Ref. Peak Hold average is used as a tracking filter linked with excitation frequency.<br> | This technique is used for some modal tests with a shaker excitation to reject non-linear phenomena. In this case, the Ref. Peak Hold average is used as a tracking filter linked with excitation frequency.<br> | ||
We advice to read [[ | We advice to read [[NVGate_FFT#Average|ref peak hold averaging]] on FFT page for more info. |