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다음 표는 LabVIEW 의 FFT-기반 VI들이 사용하는 출력 단위와 Scale factor들을 나타냅니다.
VI | Non-DC Unit (k>0) |
DC Unit (k=0) |
Sided | Non-DC Scale Factor | DC Scale Factor | Phase Unit |
FFT | V | V | Double | N/2 | N | radians |
Power Spectrum | Vrms2 | V2 | Double | 1/2 | 1 | — |
Auto Power Spectrum | Vrms2 | V2 | Single | 1 | 1 | — |
Amplitude and Phase Spectrum | Vrms | V | Single | 1 | 1 | radians |
FFT Power Spectrum | Vrms2 | V2 | Single | 1 | 1 | — |
FFT Power Spectral Density | Vrms2/Hz | V2/Hz | Single | 1 | 1 | — |
FFT Spectrum (Mag-Phase) | Vrms | V | Single | 1 | 1 | radians/degrees |
FFT Spectrum (Real-Imag) | Vrms | V | Single | 1 | 1 | radians/degrees |
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