Digital Fourier filter 数字傅里叶滤波
windowed Fourier filter 加窗傅立叶滤波
fourier filter algorithm 傅氏滤波算法
Fourier Transform Filter 傅立叶变换滤波
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Fourier filter is implemented to smooth the profile and reduce the local noise effects on NCM.
采用傅里叶算子对人体轮廓实现平滑处理，消除局部噪声对最小负曲率点的影响。
An algorithm which USES output of the Fourier filter to measure power system frequency is presented.
提出了一种利用富氏滤波器的输出测量电力系统频率的算法。
Many fine gratings are observed on the isopachic pattern. The multiplication is easy to perform by using Fourier Filter System.
除了主应力和条纹外，还有许多细栅格线，因此利用富氏光学系统可使应力条纹得到倍增。
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