| 基于频率特性的惯性时间常数测量方法研究 |
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| 引用本文： | 刘胜红,叶献方,宋洁. 基于频率特性的惯性时间常数测量方法研究[J]. 长江大学学报, 2006, 3(1): 51-53 |
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| 作者姓名： | 刘胜红 叶献方 宋洁 |
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| 作者单位： | 长江大学电子信息学院,湖北,荆州,434023;长江大学电子信息学院,湖北,荆州,434023;长江大学电子信息学院,湖北,荆州,434023 |
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| 摘 要： | 阐述了惯性时间常数的测量原理,在此基础上详细推导了用于相位差计算的最大似然估计法和相关分析法的数学公式,并在机械平台上完成相关试验以及 Matlab 数据处理程序设计、数据分析。试验结果表明,理论分析与试验显示结果相一致,相关分析法能更有效提高惯性时间常数的测量精度。
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| 关 键 词： | 惯性时间常数 相位差 最大似然估计法 相关分析法 |
| 文章编号： | 1673-1409（2006）01-0050-03 |
| 收稿时间： | 2005-10-10 |
| 修稿时间： | 2005-10-10 |
On the Frequency Characteristic-based Measurement of Inertia Time Constant |
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| LIU Sheng-hong,YE Xian-fang,SONG Jie. On the Frequency Characteristic-based Measurement of Inertia Time Constant[J]. Journal of Yangtze University, 2006, 3(1): 51-53 |
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| Authors: | LIU Sheng-hong YE Xian-fang SONG Jie |
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| Abstract: | A measurement of inertia time constant is discussed,and the necessary mathematical formu- las are derived for calculating the phase difference by means of the maximum likelihood estimate and the correlation analysis. Furthermore, the relevant experiments are conducted on the mechanical plat- form and the Matlab program for data processing is designed. The experimental results show that the theoretical analysis is identical to the experiment results,and the research indicates that the correla- tion analysis is more effective for improving the measurement accuracy of inertia time constant. |
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| Keywords: | inertia time constant phase difference maximum likelihood estimate correlation analysis |
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