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Difference between revisions of "User note: FFT averaging"
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→Ref. Peak Hold average
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It is basically the same feature as the Peak Hold average. The main difference is that it collects and holds the data of the spectrum according to a new peak on the reference channel. | It is basically the same feature as the Peak Hold average. The main difference is that it collects and holds the data of the spectrum according to a new peak on the reference channel. | ||
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. | 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 [[NVGate_FFT_Analyzer#Average|ref peak hold averaging]] on FFT page for more info. | |||