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解析信号(AS)被定义为总磁场△T一次垂直微商和二次水平微商开方之和的开方。本文从理论上证实,解析信号(AS)的波峰直接与磁源体有关,与磁源体呈对称分布,即解析信号的主要特征是它与磁场的倾角无关。当磁源体的磁化方向未知时,利用解析信号就可解决磁场△T的磁极简化常规处理中经常会遇到的困难。另外,解析信号特征中类似于磁场微商的特征,困此,对磁源体的边界效应很敏感。我们用模型数据和实际资料对方法作了验证,其中的野外数据采集于中国的湖南省,比较结果表明,在磁源体磁化反转引起常规磁极简化处理出错的地方,解析信号也能成功地应用于磁场解释。
The analytic signal (AS) is defined as the square root of the sum of the primary magnetic field ΔT and the secondary horizontal derivative. This paper theoretically confirms that the peak of the analytic signal (AS) is directly related to the source body and is symmetrically distributed with the source body. The main characteristic of the analytic signal is that it has nothing to do with the dip of the magnetic field. When the magnetization direction of the magnet source body is unknown, resolving the magnetic field of the magnetic field? T with the analytic signal simplifies the difficulties often encountered in conventional processes. In addition, the signal characteristics of the analysis similar to the characteristics of the magnetic derivative, trapped in this, the source of the body boundary effect is very sensitive. We validated the method with model data and actual data. The field data were collected in Hunan Province, China. The comparison results show that in the place where the magnetization reversal of the magnetic source caused the error of conventional pole simplification, the analytic signal can be successfully Used to explain the magnetic field.