频率域偶层位方法在直升机磁测数据处理中的应用  

THE APPLICATION OF THE FREQUENCY DOMAIN DIPOLE LAYER METHOD TO THE PROCESSING OF AEROMAGNETIC DATA SURREYED BY HELICOPTER

作　　者：于长春[1] 王万银[2] 范正国[1] 熊盛青[1] 眭素文[1] 

机构地区：[1]中国国土资源航空物探遥感中心,北京100083 [2]长安大学,陕西西安710054

出　　处：《物探与化探》2007年第6期577-580,584,共5页Geophysical and Geochemical Exploration

基　　金：国家"十五"科技攻关课题(2001BA609A-5)资助;国家危机矿山接替资源勘查项目"湖北省黄石市大冶铁矿接替资源勘查"(200442007)资助

摘　　要：由于航磁测量飞行高度数据精度低以及数据量大等原因,使得已有的一些曲面位场数据处理和转换方法很少用于实际生产中。因此,提出了频率域偶层位曲面位场数据处理和转换方法。该方法采用数据圆滑方法压制飞行高度数据的干扰,并成功地应用于湖北黄石直升机航磁测量的数据处理中。应用结果表明,曲面延拓到地表的磁场与地面磁测结果对应很好,而且曲面化极结果与已知地质体也有很好的对应,证实了频率域偶层位曲面位场数据处理和转换方法实用性强,可用于起伏测量条件下航磁数据的处理工作中。Due to remarkable errors caused by the limited data-processing capacity and the low precision of curved surface data, the processing and transform methods for the curved surface potential field have seldom been used in practical work. In this paper, a frequency domain dipole layer method for the processing of aeromagnetic data of curved surface,together with the reducing noise means, is put forward. This method was used in the aeromagnetic area of Huangshi, Hubei Province. A comparison of the calculated data with the surveyed data shows that the result is satisfactory and the magnetic field is in accord with the magnetic body. It is obvious that the frequency domain dipole layer method has good practicality, and can hence be used to process the aeromagnetic data of curved surface.

关 键 词：航磁测量 数据处理 频率域 偶层位 直升机 

分 类 号：P631[天文地球—地质矿产勘探]