| 三角波信号波形参数的测量不确定度 |
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| 引用本文： | 梁志国,孙璟宇.三角波信号波形参数的测量不确定度[J].航空计测技术,2005,25(6):57-61. |
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| 作者姓名： | 梁志国 孙璟宇 |
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| 作者单位： | 中国航空工业第一集团公司北京长城计量测试技术研究所,北京100095 |
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| 摘 要： | 通过使用波形测量手段和最小二乘直线拟合方法，对三角波信号的波峰、波谷、中值、幅度、频率、沿斜率、沿线性度、对称性等指标进行了精确评价，详细讨论了方法的实现过程以及有关技术问题，并对各项参数指标进行了不确定度分析。实验验证结果表明了该方法的有效性和实用性，该方法可应用到三角波信号源的性能指标评价中。
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| 关 键 词： | 不确定度 最小二乘 三角波 波形 参数 性能 评价 校准 |
| 文章编号： | 1002-6061(2005)06-0057-05 |
| 收稿时间： | 2005-03-02 |
| 修稿时间： | 2005年3月2日 |
The Uncertainty Evaluation of Characteristics of Triangle Waveforms by Using Least Square Methods |
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| LIANG Zhi-guo, SUN Jing-yu.The Uncertainty Evaluation of Characteristics of Triangle Waveforms by Using Least Square Methods[J].Aviation Metrology & Measurement Technology,2005,25(6):57-61. |
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| Authors: | LIANG Zhi-guo SUN Jing-yu |
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| Abstract: | By using the waveform measurements and the least square method, the top, the base, the middle value, the amplitude, the frequency of triangle waveform, and the slope of edge, the edge linearity of waveforms are evaluated precisely. The evaluation courses and some technical problems are discussed in detail, the uncertainty analysis both of the amplitude value and frequency value are presented. Some test results have proved the effectiveness and practicability of the method. It could be applied to the characteristics and performance evaluation of triangle waveform generators. |
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| Keywords: | uncertainty least square triangle waveforms characteristics performance evaluation calibration |
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