The Comparison of Performance between Contrast Source Inversion and Its Related Algorithms and Several Improved Methods

Figure 24

The comparison of convergence curves between CSI and CSI-DRF. (a) The comparison result of “U-shaped groove.” (b) The comparison result of “two scatterers (asymmetric).” (c) The comparison result of “two scatterers (symmetry).” (d) The comparison result of “single scatterer (TE wave).” (e) The comparison result of “double scatterers.” (f) The comparison result of “single scatterer.”

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(b)

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