A Fuzzy Interpolation Cross-Correlation Method for Time-Delay Estimation of Partial Discharge UHF Pulse Signals

Figure 5

The interpolated 2 GHz PD UHF pulse signals and the correlation coefficient curve. (a) Interpolated antenna A received PD signal by fuzzy interpolation. (b) Interpolated antenna A received PD signal by cubic spline interpolation. (c) Interpolated antenna B received PD signal by fuzzy interpolation. (d) Interpolated antenna B received PD signal by cubic spline interpolation. (e) Correlation coefficient curve for interpolated signals by fuzzy interpolation. (f) Correlation coefficient curve for interpolated signals by cubic spline interpolation.

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