物探化探计算技术
物探化探計算技術
물탐화탐계산기술
COMPUTING TECHNIQUES FOR GEOPHYSICAL AND GEOCHEMICAL EXPLORATION
2010年
2期
194-199
,共6页
马国庆%孟令顺%杜晓娟%张凤旭
馬國慶%孟令順%杜曉娟%張鳳旭
마국경%맹령순%두효연%장봉욱
磁异常%三方向扩边%干扰因素%优化中值滤波
磁異常%三方嚮擴邊%榦擾因素%優化中值濾波
자이상%삼방향확변%간우인소%우화중치려파
magnetic anomalies%three directions expansion%interfering factors%filter optimization
依据地质体在地面上引起磁异常的特点,提出了三方向扩边方法,这种方法能够减小边界效应,使处理结果更可靠.在实际的测量中,磁法数据受外界的干扰比较大,干扰因素给数据处理和资料解释工作带来了影响.首次将中值滤波技术引入到磁法数据处理中,提出了一种新的滤波方法,即优化中值滤波方法,来解决这个问题,并给出了优化中值滤波的模型以及计算公式.最后利用优化中值滤波方法对实际磁测数据进行处理,取得了较好的效果.
依據地質體在地麵上引起磁異常的特點,提齣瞭三方嚮擴邊方法,這種方法能夠減小邊界效應,使處理結果更可靠.在實際的測量中,磁法數據受外界的榦擾比較大,榦擾因素給數據處理和資料解釋工作帶來瞭影響.首次將中值濾波技術引入到磁法數據處理中,提齣瞭一種新的濾波方法,即優化中值濾波方法,來解決這箇問題,併給齣瞭優化中值濾波的模型以及計算公式.最後利用優化中值濾波方法對實際磁測數據進行處理,取得瞭較好的效果.
의거지질체재지면상인기자이상적특점,제출료삼방향확변방법,저충방법능구감소변계효응,사처리결과경가고.재실제적측량중,자법수거수외계적간우비교대,간우인소급수거처리화자료해석공작대래료영향.수차장중치려파기술인입도자법수거처리중,제출료일충신적려파방법,즉우화중치려파방법,래해결저개문제,병급출료우화중치려파적모형이급계산공식.최후이용우화중치려파방법대실제자측수거진행처리,취득료교호적효과.
Based on the characteristics of magnetic anomalies in the ground caused by subsurface geological bodies, An edge expansion method of three directions is proposed. This method can reduce the boundary effects and make the results more reliable. In the actual measurement,magnetic data is often interfered by various with factors and the factors makes the data processing and data interpretation more difficult. It is the first time that we introduce the median filtering technology to magnetic data processing, and we use the new filtering method to solve this problem. The optimization filter model and the calculation formula are given. Finally, the processing of actual magnetic measurement data using the above methods shows the good results.