spectrumWithFgTransform

Compute a modal autospectrum using the F-basis transform.

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Declaration

 spectrum = spectrumWithFgTransform(field)

Parameters

• field F-space field with shape [Nx Ny Nz]

Returns

• spectrum nonnegative autospectrum with shape [Nj Nkl]

Discussion

Compute a modal autospectrum using the F-basis transform.

The method transforms a gridded F-space field and applies the horizontal Hermitian and vertical normalization factors so summing the result recovers the corresponding quadratic integral.

spectrum = wvt.spectrumWithFgTransform(u);