To: “Automatic 3-D interpretation of potential‐field data using analytic signal derivatives,” by N. Debeglia and J. Corpel (January‐February 1997 GEOPHYSICS, 62, p. 87–96)

Geophysics ◽  
1997 ◽  
Vol 62 (4) ◽  
pp. 1346-1346

When we sent the last revision of our paper to Geophysics, we had not yet received the March‐April 1996 issue of Geophysics and read the paper by Hsu et al. Thereby it could not be included in the references used to assess the method and write the paper. We note some convergences between the two approaches despite the fact that the depth computation algorithms are quite different.

Geophysics ◽  
2009 ◽  
Vol 74 (3) ◽  
pp. L17-L20 ◽  
Author(s):  
G. R. Cooper

Horizontal and vertical gradients, and filters based on them (such as the analytic signal), are used routinely to enhance detail in aeromagnetic data. However, when the data contain anomalies with a large range of amplitudes, the filtered data also will contain large and small amplitude responses, making the latter hard to see. This study suggests balancing the analytic signal amplitude (sometimes called the total gradient) by the use of its orthogonal Hilbert transforms, and shows that the balanced profile curvature can be an effective method of enhancing potential-field data. Source code is available from the author on request.


2011 ◽  
Vol 54 (4) ◽  
pp. 551-559 ◽  
Author(s):  
Yao LUO ◽  
Ming WANG ◽  
Feng LUO ◽  
Song TIAN

Geophysics ◽  
1984 ◽  
Vol 49 (6) ◽  
pp. 780-786 ◽  
Author(s):  
Misac N. Nabighian

The paper extends to three dimensions (3-D) the two‐dimensional (2-D) Hilbert transform relations between potential field components. For the 3-D case, it is shown that the Hilbert transform is composed of two parts, with one part acting on the X component and one part on the Y component. As for the previously developed 2-D case, it is shown that in 3-D the vertical and horizontal derivatives are the Hilbert transforms of each other. The 2-D Cauchy‐Riemann relations between a potential function and its Hilbert transform are generalized for the 3-D case. Finally, the previously developed concept of analytic signal in 2-D can be extended to 3-D as a first step toward the development of an automatic interpretation technique for potential field data.


2016 ◽  
Vol 59 (4) ◽  
pp. 341-349
Author(s):  
YAN Ting-Jie ◽  
WU Yan-Gang ◽  
YUAN Yuan ◽  
CHEN Ling-Na

2015 ◽  
Vol 51 (1) ◽  
pp. 125-136 ◽  
Author(s):  
Yongming Yao ◽  
Danian Huang ◽  
Xianli Yu ◽  
Bosen Chai

Geophysics ◽  
1974 ◽  
Vol 39 (1) ◽  
pp. 85-92 ◽  
Author(s):  
Misac N. Nabighian

In a previous paper (Nabighian, 1972), the concept of analytic signal of bodies of polygonal cross‐section was introduced and its applications to the interpretation of potential field data were discussed. The input data for the proposed treatment are the horizontal derivative T(x) of the field profile, whether horizontal, vertical, or total field component. As it is known, this derivative curve can be thought of as being due to thin magnetized sheets surrounding the causative bodies.


2021 ◽  
Vol 14 (1) ◽  
Author(s):  
Luan Thanh Pham ◽  
Ozkan Kafadar ◽  
Erdinc Oksum ◽  
Ahmed M. Eldosouky

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