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stevenbrown銀蟲 (小有名氣)
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[求助]
大家?guī)兔纯催@句話是什么意思
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1. Eq.3: this is not the power spectral density of a signal, but only its Fourier transform. The APSD is computed as: (公式,不貼了), i.e. multiplication of the Fourier transform with its complex conjugate. I assume the authors used this as otherwise the Fourier transform is in general a complex rather than a real valued function. 最后一句話我不懂,不知是不是他寫的句子有問題,麻煩大家?guī)臀掖Υ? |
鐵桿木蟲 (知名作家)
金蟲 (著名寫手)
木蟲 (著名寫手)
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銀蟲 (小有名氣)
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