IEVref: 103-04-01 ID: Language: en Status: Standard Term: Fourier transform Synonym1: Synonym2: Synonym3: Symbol: Definition: for a real or complex function f(t) of the real variable t, complex function $F\left(\omega \right)$ of the real variable ω, given by the integral transformation $F\left(\omega \right)={\int }_{\text{ }-\infty }^{\text{ }+\infty }f\left(t\right){e}^{-\text{j}\omega \text{ }t}\mathrm{d}t$ where j is the imaginary unitNote 1 to entry: If t is time, the variable ω represents angular frequency. Note 2 to entry: The Fourier transform of the function f is also denoted Ff or ℱf. Publication date: 2009-12 Source: Replaces: Internal notes: 2017-02-20: Editorial revisions in accordance with the information provided in C00020 (IEV 103) - evaluation. JGO CO remarks: TC/SC remarks: VT remarks: Domain1: Domain2: Domain3: Domain4: Domain5: