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。
From the relation of spatial disturbing gravity and ground gravity data resolution as well as its scope, truncation errors are computed by dividing the gravity anomaly into frequency and resolution.
根据外空扰动重力与地面数据分辨率及其覆盖范围之间的关系，将重力异常分成不同频段、不同分辨率，分别计算了截断误差。
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。
The high frequency part of Dongsha high-value magnetic anomaly may be related with Cenozoic basalt and Mesozoic magmatic rocks, and the low frequency part developing high-velocity lower crust.
东沙高磁异常含一定的高频成份，与新生代玄武岩及中生代岩浆岩有关，而其低频成份可能反映了发育的下地壳高速层。
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。
What is considered to be an anomaly can vary, but normally, any incident that occurs on frequency greater than or less than two standard deviations from the statistical norm raises an eyebrow.
对于一个异常行为的变化是怎么考虑的呢？一般的来说我们这样的考虑，任何一件（异常的）事发生的次数与标准统计的基线比，是（突然）性频繁增大或者是（突然）性减少。
Computing formula of frequency-division of anomalous cosine transform spectrum is given by analyzing the basic feature of cosine transform spectrum for the anomaly of erect rectangular column.
通过分析直立矩形柱体异常的余弦变换谱基本特征，给出了异常余弦变换谱的分频计算公式。
It follows, that where the igneous basement is concealed by a sediment cover, the gravity anomaly may contain a high spatial frequency signal corresponding to the morphology of the buried basement.
意思就是说重力异常中频率比较高的信号可能与沉积层覆盖下的基底的起伏有关。
Network traffic is broken down into different frequency, and anomaly change of network traffic is detected through the high-frequency power analysis, that is the change of wavelet variance.
将网络流量分解到不同的频段，根据高频段频谱能量，即小波方差的变化对网络流量异常进行检测。
Network traffic is broken down into different frequency, and anomaly change of network traffic is detected through the high-frequency power analysis, that is the change of wavelet variance.
将网络流量分解到不同的频段，根据高频段频谱能量，即小波方差的变化对网络流量异常进行检测。
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