| 基于FFT加窗与插值算法的接地电阻测量新方法 |
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| 引用本文： | 高蕊,史二娜. 基于FFT加窗与插值算法的接地电阻测量新方法[J]. 宝鸡文理学院学报(自然科学版), 2010, 30(3): 66-68. DOI: 10.3969/j.issn.1007-1261.2010.03.016 |
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| 作者姓名： | 高蕊 史二娜 |
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| 作者单位： | 宝鸡文理学院电子电气工程系,陕西,宝鸡,721007;西安科技商贸职业学院,陕西,西安,710056 |
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| 基金项目： | 宝鸡文理学院重点科研基金资助项目 |
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| 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.
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| 关 键 词： | 改进FFT 接地电阻 异频法 |
A new ground resistance measurement method based on the improved interpolation FFT algorithm |
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| GAO Rui,SHI Er-na. A new ground resistance measurement method based on the improved interpolation FFT algorithm[J]. Journal of Baoji College of Arts and Science(Natural Science Edition), 2010, 30(3): 66-68. DOI: 10.3969/j.issn.1007-1261.2010.03.016 |
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| Authors: | GAO Rui SHI Er-na |
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| Affiliation: | GAO Rui1,SHI Er-na2(1.Dept.Electronics & Elect.Engn.,Baoji Univ.Arts & Sci.,Baoji 721007,Shaanxi,China,2.Xi'an Vocational College of Science and Technology Business,Xi'an 710056,China) |
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| Abstract: | 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. |
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| Keywords: | improved FFT ground resistance variable frequency |
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