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位场相关成像可以快速估计场源的空间位置。为了减小叠加异常对相关成像的影响,现有的成像方法通常是采用剩余异常或异常垂向导数成像。笔者通过加入一个数据截取窗口,计算窗口内数据的相关系数,以减少相邻场源间的影响,从而达到提高成像分辨率的目的;并通过相关系数极值的大小选取窗口,从理论上使成像结果更加可靠。通过重力模型试验,验证本方法能够提高成像分辨率。将该法应用于葫芦岛市黑鱼沟的某矿洞的深度计算中,取得较好效果。
Field-related imaging can quickly estimate the spatial location of the field source. In order to reduce the impact of superimposed anomaly on related imaging, existing imaging methods usually use residual anomaly or abnormal vertical derivative imaging. By adding a data interception window, the author calculates the correlation coefficient of the data in the window so as to reduce the influence between adjacent field sources so as to achieve the purpose of improving the resolution of the image. Through the selection of the window by the magnitude of the correlation coefficient, Imaging results more reliable. Through the gravity model test, verify that this method can improve the imaging resolution. This method is applied to the depth calculation of a mine hole in Heihugou, Huludao, and achieved good results.