基于两步变异差分进化算法的激电测深一维反演

丁志军, 罗维斌, 连伟章, 张星, 何海颦

One-dimensional inversion of induced polarization sounding data based on the differential evolution algorithm with two-step mutation

DING Zhi-Jun, LUO Wei-Bin, LIAN Wei-Zhang, ZHANG Xing, HE Hai-Pin

表1 H型地电模型参数及反演结果

Table 1 Parameters and inversion results of H-type earth resistivity model

模型参数 真值 取值范围 反演次数 均值 误差/% 1 2 3 4 5 ρ1/(Ω·m) 100 [10,300] 99.72 99.50 99.78 99.50 100.32 99.76 -0.24 ρ2/(Ω·m) 30 [10,150] 31.15 29.93 31.80 30.09 30.31 30.66 2.19 ρ3/(Ω·m) 110 [10,300] 110.56 110.56 107.63 107.27 107.34 108.67 -1.21 d1/m 180 [10,300] 180.00 180.00 180.00 180.00 180.00 180.00 0.00 d2/m 60 [10,300] 59.99 60.01 59.99 60.01 60.00 60.00 0.00 η1/m 0.5 [0.1, 1] 0.78 1.00 0.72 1.00 0.18 0.74 0.24 η2/m 8.5 [3, 11] 4.97 8.72 3.00 8.24 7.56 6.50 -2.00 η3/m 1 [0.5, 3.5] 0.50 0.50 3.13 3.46 3.40 2.20 1.20