摘要
目的通过对FFT算法进行改进,抑制接地电阻测量中的背景噪声与杂波干扰,精确测量接地电阻。方法基于加窗插值算法的改进型FFT算法。结果改进型FFT算法抑制了频谱泄露,提高了测量精度。结论仿真实验表明该方法明显提高了接地电阻测量的精度。
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.
出处
《宝鸡文理学院学报（自然科学版）》
CAS
2010年第3期66-68,共3页
Journal of Baoji University of Arts and Sciences(Natural Science Edition)
基金
宝鸡文理学院重点科研基金资助项目(ZK09165)
关键词
改进FFT
接地电阻
异频法
improved FFT ground resistance variable frequency
