Feature removal and isolation in potential field data

Details Feature removal and isolation in potential field data Feature removal and isolation in potential field data

Dec 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004geoji.159..833b&link_type=abstract

Geophysical Journal International, Volume 159, Issue 1, pp. 833-841.

Astronomy and Astrophysics

Astronomy

5

Gravity, Magnetics, Potential Fields, Signal Processing, Wavelets

Scientific paper

With the aim of designing signal processing tools that act locally in space upon specific features of a signal, we compare two algorithms to remove or isolate individual anomalies in potential field profiles. The first method, based on multiscale edge analysis, leaves other features in the signal relatively untouched. A second method, based on iterative lateral continuation and subtraction of anomalies, accounts for the influence of adjacent anomalies on one another. This allows a potential field profile to be transformed into a number of single anomaly signals. Each single anomaly can then be individually processed, which considerably simplifies applications such as inversion and signal processing.

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