Study of Tunnel-Face to Borehole ERI (TBERI) Measurement Configurations and Its Optimization

Figure 5

The relative model resolution distribution (a–d) of each stage of the optimization process and the model resolution comparison of the final result (e, f). (a–d) The relative model resolution distribution of the base set after 2, 6, 10, and 13 times optimization iteration. (e) The model resolution distribution of the base set after 13 times iteration. (f) The model resolution distribution of the comprehensive set.