CONTOURING OF VLF-EM DATA

被引:147
作者
FRASER, DC
机构
关键词
D O I
10.1190/1.1440065
中图分类号
P3 [地球物理学]; P59 [地球化学];
学科分类号
0708 ; 070902 ;
摘要
A data manipulation procedure is described which transforms noisy noncontourable data into less noisy contourable data, thereby eliminating the dynamic range problem and reducing the noise problem. The manipulation is the result of the application of a difference operator to transform zero-crossings into peaks, and a low-pass smoothing operator to reduce noise. Experience has shown that field personnel can routinely perform the calculations which simply involve additions and subtractions.
引用
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页码:958 / &
相关论文
共 5 条
[1]  
FRASER DC, 1966, THESIS U CALIFORNIA
[2]  
PARRY JR, 1966, THESIS U CALIFORNIA
[3]  
PARRY JR, 1965, 35 ANN INT SEG M DAL
[4]  
WARD SH, 1967, MINING GEOPHYSICS, V2, P80
[5]  
Whittles A.B.L., 1969, PROSPECTING RADIO FR, P51