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rvgeo
rvgeo
fastFFT2
Function fastFFT2
fastFFT2
(
X
)
:
Complex
[]
[]
快速傅里叶变换 real to complex
先对每一行进行傅里叶变换,再对每一列进行傅里叶变换,最后中心化
Parameters
X
:
number
[]
[]
采样结果
Returns
Complex
[]
[]
傅里叶变换结果,作为复数可同时表示振幅和相位。
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快速傅里叶变换 real to complex