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。

Potential correlation imaging method can obtain the location of the source rapidly． To reduce the impact of superposed anomaly on correlation imaging，the existing methods usually use residual anomaly or vertical derivative imaging． The authors add a data intercept window to truncate the data， and calculate the correlation coef- ficient based on window data to reduce the impact of adjacent field source and improve the resolution of imaging． The windows were selected by the values of correlation coefficient extremum to get more reliable imaging results． With the test of gravity models，it was proved that the method can improve the resolution of imaging． The method was applied to calculate the depth of a mine tunnel in Heiyugou of Huludao City，and the result was satisfactory．