CAJ | 학술논문

在每条测线内自动寻找剩余局部异常最大点处的观测值,将其作为参考模型,并沿整条测线进行滑动自相关处理,对重磁异常处理中的自相关滤波因子进行了改造.理论模型研究表明,改造后的滤波结果中零等值线能较好的划分异常边界,对横向叠加异常的分辨能力很强,能够提取常规方法很难识别的弱异常.对滤波窗口的研究表明,自相关半径选择3～6个网格节点距为佳.利用改造后的自相关滤波因子进行实际资料处理,发现了新的找矿远景区.
재매조측선내자동심조잉여국부이상최대점처적관측치,장기작위삼고모형,병연정조측선진행활동자상관처리,대중자이상처리중적자상관려파인자진행료개조.이론모형연구표명,개조후적려파결과중령등치선능교호적화분이상변계,대횡향첩가이상적분변능력흔강,능구제취상규방법흔난식별적약이상.대려파창구적연구표명,자상관반경선택3～6개망격절점거위가.이용개조후적자상관려파인자진행실제자료처리,발현료신적조광원경구.
The authors reform the conventional self-correlation filtering factor in the process of gravity and magnetic anomalies in search for the observed value in remaining local anomaly largest point automatically in each measuring line and taking it as the reference model, then making the sliding self-correlation treatment along the whole measuring lines. The study of theoretical model shows that the zero-contour of reformed filtering results can define the abnormal border preferably is strong in resolving power of horizontal anomaly superimposition, and can extract weak anomaly which is indiscernible in normal method. The study of filtering window shows that it is the best for self-correlation radius in 3～6 grid node distances. The authors find new prospecting area by treating the actual data using reformed self-correlation filtering factor.