Determining lateral boundaries of the potential field source is a common feature in interpreting magnetic and gravity data. There are many different phase based filters to determine the boundaries of the source. The purpose of this study is to compare the performance of phase-based filters such as tilt derivative, theta map, normalized horizontal derivative, tilt derivative of the horizontal derivative, tilt derivative of the total gradient, improved theta and horizontal gradient of a modified version of tilt derivative. In order to obtain optimum results, these filters were tested on synthetic magnetic and gravity anomaly data and also aeromagnetic anomaly from the Seattle Uplift (SU), Washington, United States of America. The results show that the tilt derivative of the horizontal derivative method revealed better detection of the source edges compared to the results by the other filters. These results demonstrate that the tilt derivative of the horizontal derivative method is a useful tool for the qualitative interpretation of magnetic and gravity data.

确定势场源的横向边界是解释磁场和重力数据的一个共同特征。有许多不同的基于相位的滤波器可以确定信号源的边界。这项研究的目的是比较基于相位的滤波器的性能，例如倾斜导数，θ贴图，归一化水平导数，水平导数的倾斜导数，总梯度的倾斜导数，改进版本的改进的θ和水平梯度倾斜导数 为了获得最佳结果，对这些滤波器进行了合成磁和重力异常数据测试，还对美利坚合众国华盛顿州西雅图隆起（SU）的航空磁异常进行了测试。结果表明，与其他滤波器的结果相比，水平导数方法的倾斜导数显示出对源边缘的更好检测。这些结果表明，水平导数方法的倾斜导数是定性解释磁性和重力数据的有用工具。