17 已知 F ( s ) = ℑ{ f (t )}為 f (t)的傅立葉轉換(Fourier transform),f *(t)為 f (t)的共軛複數(complexconjugate),其中 s
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17 已知 F ( s ) = ℑ{ f (t )}為 f (t)的傅立葉轉換(Fourier transform),f *(t)為 f (t)的共軛複數(complexconjugate),其中 s = jω,下列何者錯誤? (A)f *(t)的傅立葉轉換為 F*(–s) (B)f *(–t)的傅立葉轉換為 F*(–s) 1 s (C)f (–t)的傅立葉轉換為 F(–s) (D)f (3t)的傅立葉轉換為