Enhancing potential field data using filters based on the local phase

被引：418

作者：

Cooper, G. R. J. ^{[1
]}

Cowan, D. R.

机构：

[1] Univ Witwatersrand, Sch Geosci, Johannesburg, South Africa

[2] Cowan Geodata Serv, Dalkeith, WA, Australia

来源：

COMPUTERS & GEOSCIENCES | 2006年 / 32卷 / 10期

关键词：

tilt angle; magnetics; derivatives;

D O I：

10.1016/j.cageo.2006.02.016

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

Measures of the local phase of potential fields can be a useful aid to their interpretation. There are several variations in use, such as the tilt angle, tilt derivative and the Theta map. This paper compares the results of these filters, and introduces some new phase-based filters which show improved performance as edge detectors in different ways. The filters are demonstrated on synthetic gravity data and on magnetic data from Australia. Source code in Matlab format is available from the server at: www.iamg.org. (c) 2006 Elsevier Ltd. All rights reserved.

引用

页码：1585 / 1591

页数：7

共 13 条

[1] Feature detection using sun shading [J].

Cooper, GRJ .

COMPUTERS & GEOSCIENCES, 2003, 29 (08) :941-948

[2] Separation filtering using fractional order derivatives [J].

Cowan, Duncan ;

Cooper, Gordon .

EXPLORATION GEOPHYSICS, 2005, 36 (04) :393-396

[3]

Cowan DR, 2005, GEOL SOC AM SPEC PAP, V384, P51, DOI 10.1130/0-8137-2384-1.51

[4]

DENTITH MC, 2003, PUBLICATION U W AUST, V31

[5]

Fitzgerald D., 1997, EXPLOR GEOPHYS, V28, P204, DOI [10.1071/EG997204, DOI 10.1071/EG997204]

[6]

HORN BKP, 1982, GEO-PROCESSING, V2, P65

[7] POTENTIAL-FIELD TILT - A NEW CONCEPT FOR LOCATION OF POTENTIAL-FIELD SOURCES [J].

MILLER, HG ;

SINGH, V .

JOURNAL OF APPLIED GEOPHYSICS, 1994, 32 (2-3) :213-217

[8] Structural geometry and controls on basement-involved deformation in the northern Flinders Ranges, Adelaide Fold Belt, South Australia [J].

Paul, E ;

Flöttmann, T ;

Sandiford, M .

AUSTRALIAN JOURNAL OF EARTH SCIENCES, 1999, 46 (03) :343-354

[9]

PILKINGTON M, 2004, ASEG 17 GEOPH C EXH

[10]

SPIEGEL MR, 1972, THEORY PROBLEMS COMP

← 1 2 →