Nondestructive Imaging of Subspace Objects by 2D Electrical Resistance Tomography

2차원 전기비저항토모그래피를 이용한 지하물체의 비파괴 영상화

  • Published : 2005.07.18

Abstract

Electrical resistance tomography(ERT) maps resistivity values of the soil subsurface and characterizes buried objects. The characterization includes location, size, and resistivity of buried objects. In this paper, Gauss-Newton and truncated least squares(TLS) are presented for the solution of the ERT image reconstruction. Computer simulations show that the spatial resolution of the reconstructed images by the TLS approach is improved as compared to that obtained by the Gauss-Newton method.

Keywords