Figure 3

Model 1: SP data (noise free). (a) SP anomaly produced from a horizontal cylinder model. (b) Horizontal (HD) and vertical (VD) derivatives of the SP data rendered in (a). (c) Analytic signal (AS) amplitude. (d) Image of the R-parameter (R).

Model 1: SP data (noise free). (a) SP anomaly produced from a horizontal cylinder model. (b) Horizontal (HD) and vertical (VD) derivatives of the SP data rendered in (a). (c) Analytic signal (AS) amplitude. (d) Image of the R-parameter (R).