Computes the inverse real fast Fourier transform (FFT) or the inverse real discrete Fourier transform (DFT) of the input sequence FFT{X}. Details
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FFT {X} is the complex input sequence. |
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X is the inverse real FFT of FFT{X}. |
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error returns any error or warning from the VI. Refer to Signal Processing Error Codes for more information about these conditions. |
The input sequence is complex-valued. The Inverse Real FFT VI automatically determines the options, which are the inverse real FFT of a complex-valued sequence if the size is a power of 2 and the inverse real DFT of a complex-valued sequence if the size is not a power of 2.
The Inverse Real FFT VI executes inverse FFT routines if the size of the input sequence is a valid power of 2
If the size of the input sequence is not a power of 2, the Inverse Real FFT VI calls an efficient inverse DFT routine.
The output sequence X = Inverse Real FFT[FFT{X}] is real, and it returns in one real array.