A Subspace Preconditioned LSQR Gauss-Newton Method with a Constrained Line Search Path Applied to 3D Biomedical Microwave Imaging

Figure 8

Real part of the exact permittivity used to simulate the data at 1 GHz without added noise (left) and of the reconstructed permittivity on the coarser grid (right) for the child’s arm phantom, in the -plane (top) and -plane (bottom). Distances are in m.

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