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从二度磁异常上延理论出发,推导出一种下延方法。该法有较高的延拓精度。为减少实测数据中高频干扰给下延结果带来的影响,还讨论了磁异常的光滑问题,并推导出一个能压制高频干扰、突出低频异常的下延公式。
Starting from the second extension of the theory of magnetic anomalies, a method of extending is deduced. The law has a higher extension accuracy. In order to reduce the influence of the high-frequency interference in the measured data on the result of the delay, the smoothness problem of the magnetic anomaly was also discussed and a formula for the delay of suppressing the high-frequency interference and highlighting the low frequency anomaly was deduced.