| 高精度数字闭环光纤陀螺的调制增益控制 |
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| 引用本文： | 张勇,李绪友,王南,王瑞.高精度数字闭环光纤陀螺的调制增益控制[J].哈尔滨工程大学学报,2008,29(11). |
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| 作者姓名： | 张勇 李绪友 王南 王瑞 |
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| 作者单位： | 1. 哈尔滨工程大学,自动化学院,黑龙江,哈尔滨,150001
2. 海军驻杭州地区军代表室,浙江,杭州,310012 |
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| 基金项目： | 国防科学技术工业委员会基础研究基金
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| 摘 要： | 高精度光纤陀螺广泛采用数字闭环处理的方案,因此闭环增益控制的误差将会影响到陀螺性能.从光纤陀螺的信号处理原理出发,分析了光纤陀螺的关键器件Y波导的半波电压波动对陀螺精度的影响,并针对此提出了光纤陀螺调制增益控制的原理.根据该原理,设计了基于四态调制的双闭环数字信号处理方案,用来对调制增益漂移进行实时跟踪和补偿.实验结果表明,该方案提高了陀螺的零偏稳定性以及标度因数线性度,改善了陀螺性能.
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| 关 键 词： | 信号处理 Y波导 调制增益 第二闭环回路 四态调制 |
Modulation gain control of high-precision digital closed-loop fiber optic gyroscopes |
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| ZHANG Yong,LI Xu-you,WANG Nan,WANG Rui.Modulation gain control of high-precision digital closed-loop fiber optic gyroscopes[J].Journal of Harbin Engineering University,2008,29(11). |
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| Authors: | ZHANG Yong LI Xu-you WANG Nan WANG Rui |
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| Affiliation: | ZHANG Yong1,LI Xu-you1,WANG Nan2,WANG Rui1(1.College of Automation,Harbin Engineering University,Harbin 150001,China,2.Navy Military Representatives in Hangzhou,Hangzhou 310012,China) |
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| Abstract: | Since digital closed-loop control is extensively used in high-precision fiber optic gyroscopes(FOG),the errors from the closed-loop gain control will certainly affect the performance of the gyroscope.Starting from the working principle of signal processing of high-precision digital closed-loop fiber optic gyroscopes,the influence of fluctuation caused by half-wave voltage of Y waveguide-a key device in FOG-on the accuracy of gyroscopes was investigated,and the modulation gain control theory of FOG was devel... |
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| Keywords: | signal processing Y waveguide modulation gain second closed loop four-state modulation |
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