Transfer function for reduction to pole can be used to reduce directional oblique magnetic anomaly to vertical magnetic anomaly in frequency (or wavenumber) domain.
在频率(波数)域中利用化极转换函数可以将具有方向性的斜磁化异常转换为方向性不明显的垂直磁化异常。
Although the filtering method in frequency domain can solve the time variant filtering problem based on Fourier transform, the method may appear a false anomaly in conjunct part between Windows.
频率域滤波方法虽然可解决时变滤波问题，但这种方法是基于傅里叶变换，在窗口与窗口之间的接合部位会出现假异常。
The results show that anomaly frequency method is effective for the analysis of high frequency information characteristics in digital subsurface fluid data.
结果表明，异常频次法是地下流体数字化资料高频信息特征分析及其应用的有效方法。
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