18.7.1 The Coherence Dialog Box

See Recalculating Analysis Results.

Specifies the first input signal. See Specifying Your Input Data.

Specifies the second input signal. See Specifying Your Input Data.

Specifies the sampling frequency. The default is <auto>, which corresponds to an automatically-calculated interval.

Specifies the size of FFT section.

Specifies the window size, which must not be greater than the size of an FFT section.

Specifies the number of data points by which the window sections overlap. It should be less than the window size.

Specifies the window type used by FFT.

• Rectangle
• Welch
• Triangular
• Bartlett
• Hanning
• Hamming
• Blackman
• Gaussian
• Kaiser

For more information on window types, see the Coherence Algorithms page.

Specifies the window size, which must not be greater than the size of an FFT section.

Specifies the number of data points by which the window sections overlap. It should be less than the window size.

This variable is only available when Window Type is Gaussian. It specifies the Alpha parameter for the Gaussian window.

This variable is only available when Window Type is Kaiser. It specifies the Beta parameter for the Kaiser window.

Specifies the output. See Output Results.