对重磁异常进行变换及滤波,可以在空间域实现,也可以在波数域实现。用专门设计的算子(权系数组)对位场数据作卷积,是在空间域实现这类变换或滤波的一般形式。由富氏变换的卷积定理可知,二函数卷积的富氏变换等于两函数各自的富氏变换的乘积。在波数域实现上述位场 The gravity magnetic anomaly transformation and filtering, can be achieved in the spatial domain, can also be achieved in the wave number domain. Convolution of bit field data with specially designed operators (sets of weighting coefficients) is a general form of such transformation or filtering in the spatial domain. According to the convolution theorem of Fourier transform, the Fourier transform of the two-function convolution is equal to the product of the two Fourier transform of the two functions. The above-mentioned field is realized in the wavenumber domain