A Discussion About The Application Of 1D Werner Deconvolution In Magnetic Data Processing

1D Werner Deconvolution Section Rapid Inversion is a method that convers nonlinearity inversion into linearity inversion,which gets the top position of the edge on the magnetic substance.The advantage of this method is that it is simple and flexible to use.On the other hand,it has disadvantage that it could only be applied to some special models of field source, such as the tabular body which is unlimited and downward extending and the thick contact.To the complicate models,this method can only calculate the approximate solutions of the position on the top of the model.This method has a little limitation to the practical application.On the basis of predecessors' research,the tentative calculation of the model on the Werner deconvolution has been proposed in the paper,and the analyis and the sum-up of the cooresponding results has also been finished.To eliminate the interference,the usual method is to apply wave filtering to the magnetism abnormity.This paper has adopted the method of upward continuation to eliminate the interference.The usual method to get the reasonable solution from multiple reversal solutions is calculating average value and the variance,and then selecting the average value within the limits of variance.This method not only raises the amount of calculation,but also cannot separate the transversely superimposing magnetic substance very well.To separate the transversely superimposing magnetic substance,this paper firstly has adopted the method of aggregate level differential coefficient edge recognition to locate the edge of the magnetic substance,and then executed reversal calculation in this position using different Werner operators,finally gotten the reasonable resolution by previous methods.This technology has been used in the tabular body which is unlimited and downward extending and the thick contact,and gotten satisfactory results.It not only considers the interfering of the regional background and the effect of the complex forms,but also the Werner7 point operator and extended models.In the end of this paper,this method has been applied in the aeromagnetic survey data of northern part in South China Sea, the top position of the edge on the magnetic substance and the depth of burial has also been finishend,and finally the results of inversion has been initially explained.