Data Fusion for Electromagnetic and Electrical Resistive Tomography Based on Maximum Likelihood

Figure 1

Illustration of measurement setup and Green's functions 𝐺⁽¹⁾_c(𝝆,𝝆^′) and 𝐺⁽²⁾_c(𝝆,𝝆^′) in electromagnetic and electrical resistive tomography, respectively. The large circle in the center indicates the tunnel of radius 𝑎=0.5 m, and the 21 small circles the horizontal sensors (point sources). In both plots shown above, the source is at 𝝆^′ corresponding to the fourth sensor from the left.

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