从维纳滤波原理出发 ，应用多层格林等效层模型精确模拟实测重磁场的径向对数功率谱 ，实现了重磁场在频率域的优选延拓。
A preferential continuation operator derived from Wiener filter and Green's equivalent layer principles is used to separate the anomaly caused by the shall.
在对数据进行清理的基础上，分析了各站坐标分量噪声的功率谱密度，计算了表征各分量的噪声特性的谱指数。
On the basis of data processing, we analyze the power spectrum density of coordinate component noise at each site and calculate the spectral indexes manifesting the noise property of each component.
而如果没有数据相关度理论对数据进行预处理判断是否缺陷，功率谱特定频段数据保存法的压缩能力还是极其有限。
And if not using data correlation coefficient theory to determine whether there is defect in pipe, only using PSD particular frequency band storing method, the compression rate is extremely limited.
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