| 一种非均匀同步采样及其DFT算法 |
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| 引用本文： | 蔡菲娜,张建奇.一种非均匀同步采样及其DFT算法[J].电测与仪表,2004,41(6):11-13. |
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| 作者姓名： | 蔡菲娜 张建奇 |
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| 作者单位： | 浙江工业大学,之江学院,杭州,310024;浙江工业大学,之江学院,杭州,310024 |
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| 摘 要： | 提出了一种非均匀同步采样方法，它不仅有效地抑止了采样周期误差，而且实际采样点与其理论采样点间的偏离也被有效控制在1个Td之内。所提出的DFT算法，具有精度高和计算量较小的特点，适用于周期信号电参数测量和谐波分析。
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| 关 键 词： | 周期信号 非均匀采样 DFT |
| 文章编号： | 1001-1390(2004)06-0011-03 |
| 修稿时间： | 2004年3月29日 |
A non-uniformity synchronous sampling and DFT algorithm |
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| Cai Feina,Zhang Jianqi.A non-uniformity synchronous sampling and DFT algorithm[J].Electrical Measurement & Instrumentation,2004,41(6):11-13. |
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| Authors: | Cai Feina Zhang Jianqi |
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| Abstract: | Proposes a method of Two-section Double-speed synchronous sampling. It has effectively restrained error of the sampling period and made it not exceed one Td (Td are a resolution of the timer).The deviations between actual and theoretic sampling point are controlled within one Td .The Calculating amount of multiplication put forward is only half of DFT algorithms too.Calculation time is reduced and accuracy is improved obviously.It has practical applications value.It is suit for electric parameter measure and harmonic analysis of periodic signals. |
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| Keywords: | cycle signals non-uniformity sampling DFT |
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