| 石英角速率传感器数字相关检测技术研究 |
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| 引用本文： | 吴美平,罗兵,郭理彬.石英角速率传感器数字相关检测技术研究[J].国防科技大学学报,2007,29(4):116-120. |
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| 作者姓名： | 吴美平 罗兵 郭理彬 |
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| 作者单位： | 国防科技大学,机电工程与自动化学院,湖南,长沙,410073 |
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| 摘 要： | 为提高石英角速率传感器(QRS)的测量性能,提出了基于数字相关检测技术的QRS信号解调方案。该方案需将一组互相正交的参考信号作为两个相关器的输入,能够同时分离出QRS敏感信号相对于参考信号的同相分量和正交分量。通过角速度提取算法可由以上分量进一步得到输入角速度。分析了实现参考通道功能的两种方法:锁相环(PLL)和Hilbert变换,通过对这两种方法的对比得知,PLL更适合作为QRS相关检测的参考通道。
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| 关 键 词： | 石英角速率传感器 相关检测 锁相环 Hilbert变换 |
| 文章编号： | 1001-2486(2007)04-0116-05 |
| 收稿时间： | 2006/12/30 0:00:00 |
| 修稿时间： | 2006年12月30 |
Study on Digital Correlation Detection Technology of Quartz Rate Sensor |
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| WU Meiping,LUO Bing and GUO Libin.Study on Digital Correlation Detection Technology of Quartz Rate Sensor[J].Journal of National University of Defense Technology,2007,29(4):116-120. |
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| Authors: | WU Meiping LUO Bing and GUO Libin |
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| Institution: | College of Mechatronics Engineering and Automation, National Univ. of Defense Technology, Changsha 410073, China;College of Mechatronics Engineering and Automation, National Univ. of Defense Technology, Changsha 410073, China;College of Mechatronics Engineering and Automation, National Univ. of Defense Technology, Changsha 410073, China |
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| Abstract: | A method for quartz rate sensor(QRS) using digital correlation detection is proposed to improve the performance of QRS.It requires a pair of orthogonal signals as input of two correlates,which can extract the in-phase and quadrature-phase component from QRS' readout signal.Then the input angular rate will be obtained from these two components.A reference channel is used to generate a pair of orthogonal signals.Phase-locked loop(PLL) and Hilbert transform can be used as the reference channel.By comparison it is concluded that the PLL has better performance than Hilbert transform. |
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| Keywords: | quartz rate sensor correlation detection phase-locked loop hilbert transform |
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