Fast local wavenumber （FLW） method for the inversion of magnetic source parameters

The current local wavenumber methods for the interpretation of magnetic anomalies compute the locations of geological bodies by solving complex matrices. Presently, such methods require to know the structural index, which is a parameter that represents the source type. The structural index is hard to know in real data; consequently, the precision of current methods is low. We present the fast local wavenumber （FLW） method, and define the squared sum of the horizontal and vertical local wavenumbers as the cumulative local wavenumber. The FLW method is the linear combination of the umulative local wavenumberand other wavenumbers, and is used to compute the locations and structural index of the source without a priori information and matrix solution. We apply the FLW method to synthetic magnetic anomalies, and the results suggest that the FLW method is insensitive to background and oblique magnetization. Next, we apply the FLW method to real magnetic data to obtain the location and structural index of the source.

为磁性的异例的解释的当前的本地 wavenumber 方法由解决复杂矩阵计算地质的身体的地点。一会儿，如此的方法要求知道结构的索引，它是代表来源类型的一个参数。结构的索引是难的在真实数据知道；因而，当前的方法的精确是低的。我们在场快本地 wavenumber (FLW ) 方法，并且把水平、垂直的本地 wavenumbers 的摆平的和定义为累积本地 wavenumber。FLW 方法是 umulative 本地人 wavenumberand 的线性联合另外的 wavenumbers，并且没有一个 priori 信息和矩阵答案，被用来计算地点和来源的结构的索引。我们把 FLW 方法用于合成磁性的异例，并且结果建议 FLW 方法对背景和倾斜的磁化感觉迟钝。下次，我们把 FLW 方法用于真实磁性的数据获得地点和来源的结构的索引。