| 基于数字正交变换的相位差测量方法及误差分析 |
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| 引用本文： | 宋长宝,李志刚,竺小松.基于数字正交变换的相位差测量方法及误差分析[J].电路与系统学报,2006,11(1):143-146. |
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| 作者姓名： | 宋长宝 李志刚 竺小松 |
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| 作者单位： | 合肥电子工程学院,安徽,合肥,230037 |
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| 摘 要： | 阐述了一种基于数字正交变换的相位差测量方法，理论上详细讨论和分析了取样数据长度、信噪比以及A／D转换器的量化比特数对相位差测量精度的影响，最后给出了数值仿真结果及结论。
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| 关 键 词： | 数字正交变换 相位差测量 误差分析 |
| 文章编号： | 1007-0249（2006）01-0143-04 |
| 收稿时间： | 2003-10-13 |
| 修稿时间： | 2004-05-31 |
A method & error analysis of phase difference measurement based on digital quadrature transformation |
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| SONG Chang-bao,LI Zhi-gang,ZHU Xiao-song.A method & error analysis of phase difference measurement based on digital quadrature transformation[J].Journal of Circuits and Systems,2006,11(1):143-146. |
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| Authors: | SONG Chang-bao LI Zhi-gang ZHU Xiao-song |
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| Abstract: | An algorithm of phase difference measurement based on digital quadrature transformation is presented. Length of sampled data, Signal-to-Noise Ratio and number of ADC quantization bits which influence precision of phase difference measurement are particularly discussed and analysed. Simulation results and conclusions are given. |
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| Keywords: | digital quadrature transformation phase difference measuring errors analysis |
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