1887
PDF

Abstract

In this paper we show the numerical study of the fracture zone imaging by the radar tomography. The sources are arranged in one bore-hole and the receivers are in another bore-hole. In order to image the conductive distribution between these bore-holes, the gradient method is adopted. It estimates from observed electric field data by using a gradient search for the minimum of error function, and does not require an integral equation or simultaneous equations. The advantage of this inversion scheme is to solve the revised subsurface model quite simply, if we have a forward modeling simulator. The modeling simulator using the Fourie transform based on the FDTD (Finite Difference Time Domain) method is adopted for this simulator since it has the accuracy of the computation results, relatively high speed calculations and small memory space. Numerical studies were carried out and we found that the shape of the fracture zone is recognized clearly after 30 iterations.

Loading

Article metrics loading...

/content/papers/10.3997/2352-8265.20140028
1999-12-15
2021-10-16
Loading full text...

Full text loading...

http://instance.metastore.ingenta.com/content/papers/10.3997/2352-8265.20140028
Loading
This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error