A new ground resistance measurement method based on the improved interpolation FFT algorithm
Shi Er-na · Journal of Baoji University of Arts and Sciences · 2010
Aim To inhibit the background noise and clutter interference and measure ground resistance accurately by improving FFT algorithm. Methods The improved interpolation FFT algorithm and variable frequency method are adopted. Results The improved interpolation FFT algorithm can inhibit the frequency spectrum leakage and improve measurement precision. Conclusion The simulation experiment shows that the method proposed can markedly improve measurement precision of ground resistance.