Fig. 6

Apparent resistivity and phase curves of the station ASY0002B. The upper panels are apparent resistivity curves and the bottom panels are phase curves. The red curves with inverted triangles represent the results obtained by all raw data sets D₁ and D₂; the black solid lines represent the results obtained using noise-free data set D₁; the green curves with triangles stand for the results achieved by data sets D₁ and D₂ but is de-noised by ISISC; the curves with blue circles stand for the results calculated from the data sets D₁ and D₂, but filtered by the pulse dictionary-based method