| 激光陀螺锁区最小化控制技术 |
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| 引用本文： | 刘元正,王京献,马仰华,兰佩锋.激光陀螺锁区最小化控制技术[J].光子学报,2014,39(5):781-784. |
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| 作者姓名： | 刘元正 王京献 马仰华 兰佩锋 |
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| 作者单位： | （中航工业西安飞行自动控制研究所,西安 710065） |
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| 基金项目： | 航空科学基金（06ZD18011）资助 |
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| 摘 要： | 通过分析激光陀螺锁区的形成原因,给出了锁区最小化控制的基本原理.由激光陀螺谐振腔相向传播光束的输出特性,说明了常规锁区控制方案存在的缺点.从激光陀螺基本方程推导出锁区误差判别信号,提出了基于拍频信号和腔长信号迭加放大的高信噪比锁区控制方案,对交变偏频和常值偏频激光陀螺均适用.运用该项技术,实现了对某型激光陀螺的全温范围内的锁区最小化控制.
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| 关 键 词： | 激光陀螺 锁区控制 背向散射 高信噪比 |
| 收稿时间： | 2009-10-28 |
Lock-in Zone Controlling for Ring Laser Gyro |
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| LIU Yuan-Zheng,WANG Jing-Xian,MA Yang-Hua,LAN Pei-Feng.Lock-in Zone Controlling for Ring Laser Gyro[J].Acta Photonica Sinica,2014,39(5):781-784. |
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| Authors: | LIU Yuan-Zheng WANG Jing-Xian MA Yang-Hua LAN Pei-Feng |
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| Institution: | (The Flight Automatic Control Research Institute of AVIC,Xi′an 710065,China) |
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| Abstract: | The output characteristic of the traveling waves in the cavity is analyzed and it is found that the conventional lock-in control techniques have some disadvantages.The lock-in error discriminant signal is deduced from the equations for laser gyro.The high signal-to-noise ratio controlling means are implemented by the operation of beat frequency signal and cavity length signal.It is concluded that the approach is applicable to both constant biased and alternating biased laser gyro,and the the lock-in zone of laser gyro is precisely controlled in the operating temperature range. |
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| Keywords: | Laser gyro Lock-in control Backscatter High signal-to-noise ratio |
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