Characterization of UXO-Like targets using broadband electromagnetic induction sensors
Characterization of UXO-Like targets using broadband electromagnetic induction sensors
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DOI：
10.1109/tgrs.2003.809936
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发表时间：
2003-03-01
影响因子：
8.2
通讯作者：
Won, IJ
中科院分区：
文献类型：
--
作者：
Huang, HP;Won, IJ
我们反演了一个孤立目标的宽带电磁感应数据，以确定其电导率，磁导率，半径和深度使用球体模型。使用同心宽带电磁传感器的合成数据的研究表明，该技术是可靠的，并产生快速收敛的解决方案。通过这种技术获得的几何参数非常接近真实值，和电参数的无噪声数据是正确的百分之几。当10%的噪声被添加到数据中时，几何参数仍然被很好地确定，但是电参数的分辨率很差，特别是对于导电和可渗透的球体。对实验数据的检验表明，对于非球形目标，该方法可以合理地估计目标的体积等效尺寸和深度。
We have inverted broadband electromagnetic induction data over an isolated target to determine its electrical conductivity, magnetic permeability, radius, and depth using a sphere model. Studies using synthetic data of a concentric, broadband, electromagnetic sensor indicate that the technique is dependable and produces fast-converging solutions. The geometrical parameters obtained through this technique are very close to true values, and the electric parameters for noise-free data are correct to within a few percent. When 10% noise is added to the data, the geometric parameters are still well determined, but the electric parameters are poorly resolved, particularly for a sphere that is both conductive and permeable. Tests on the experiment data show that volume-equivalent size and depth to a target can be reasonably estimated for a nonspherical object.