Due to the dipolar nature of the geomagnetic field, magnetic anomalies observed anywhere rather than magnetic poles are asymmetric even when the causative body distribution is symmetric. This property complicates the interpretation of magnetic data. Reduction to the pole (RTP) is a technique that converts magnetic anomaly to symmetrical pattern which would have been observed with vertical magnetization. This technique usually is applied in frequency domain which has some disadvantages such as noise induction, necessity of using fixed inclination and declination throughout survey area and also unknown remanent magnetization that in many cases restrict its applicability. Analytic signal is a suitable quantity that can be calculated either in space or frequency domain and its amplitude is independent to magnetization direction. In this paper, analytic signal has been used as RTP operator and applied on the synthetic magnetic data and on the real magnetic data from an area in Shahrood region of Iran and results compared to conventional RTP operation. Results show that least difference is relevant to the causative body location and then analytic signal can be used as substituent method for conventional RTP.
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