of;
Geosciences;
and;
Info-Physics,;
Central;
South;
University,;
Changsha;
410083,;
China;
Laboratory;
of;
Metallogenic;
Prediction;
of;
Nonferrous;
Metals,;
Ministry;
of;
Education;
(Central;
South;
University),;
Changsha;
410083,;
China;
无网格伽辽金法; 数值模拟; 探地雷达; Galerkin方法; 吸收边界条件; 地面穿透雷达; EFGM; 单元网格;