Potential field data is commonly enhanced in various ways to extract detail about source locations and/or depths. Methods which use higher order derivatives are naturally more sensitive to noise than those which use lower order derivatives. Pseudo-derivatives combine the amplitude of one order of derivative with the phase of another, which can have various advantages. It is demonstrated here how pseudo-derivatives of different orders can be combined to produce an modified enhanced horizontal derivative filter which is less sensitive to noise while still retaining detail in the result. The method is demonstrated on synthetic data and on potential field data from Southern Africa.

中文翻译：

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一种改进的用于势场数据的增强型水平导数滤波器

势场数据通常以各种方式增强，以提取有关源位置和/或深度的详细信息。使用高阶导数的方法自然比使用低阶导数的方法对噪声更敏感。伪导数将一个阶导数的幅度与另一阶导数的相位相结合，具有多种优点。这里演示了如何组合不同阶的伪导数以产生改进的增强水平导数滤波器，该滤波器对噪声不太敏感，同时仍保留结果中的细节。该方法在合成数据和来自南部非洲的潜在现场数据上得到了证明。