The Fourieramplitudespectrum used in a seismological model can be expressed as a product of source spectrum, propagation path factor and site effect in frequency domain.
在频域内，场地的地震动傅立叶幅值谱，可以表示为震源谱、传播路径影响因子和场地效应的乘积。
2
Used Fourier transforming the nuclear logs, its vertical resolution can be achieved from analyzing the changes of amplitudespectrum slope.
对核测井曲线进行付氏变换，其纵向分辨率可以从分析振幅谱斜率变化中获得。
3
This paper presents computation of the signal's amplitudespectrum and phase spectrum the Fourier transform.