匹配滤波方法在场源分离上的应用

The application of match filtering method in source separation

介绍了匹配滤波方法的原理、应用条件、实现过程。用该方法对内蒙古白云鄂博矿区的主矿段和西矿段航磁异常进行了垂向位场的分离,利用径向功率谱法对深、浅源场异常进行磁性体埋深反演,反演结果表明,该区在1 000m^1 300m之间可能还存在铁矿体。验证了匹配滤波方法在一定条件下,可以较为快速地进行位场分离,实现磁性体深度准确反演。

The principle,application condition,implementation process of match filtering method was introduced in this paper,which was used in separating the vertical field of aeromagnetic anomalies in Inner Mongolia Baiyunebo mine＇s main ore section and west ore section.The radial logarithmic power spectrum method was used in magnetic anomaly depth inversion of deep-shallow source.The inversion results show that the area in 1 000 to 1 300 meters and possibly iron ore body.Under certain conditions,the matched filter can separate the magnetic field much quickly,and achieve the accurate depth of magnetic body inversion.