| 基于电子信号处理的四频激光陀螺信号读出研究 |
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| 引用本文： | 汪之国,龙兴武,王飞,刘政,许光明.基于电子信号处理的四频激光陀螺信号读出研究[J].光学技术,2009,35(4). |
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| 作者姓名： | 汪之国 龙兴武 王飞 刘政 许光明 |
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| 作者单位： | 国防科技大学,光电科学与工程学院光电工程系,长沙,410073 |
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| 摘 要： | 针对当前四频差动激光陀螺(DLG)读出系统结构复杂、易受温度影响等问题,对现有读出系统进行了改进,设计了使用电子信号处理代替光学信号处理来分离左、右旋陀螺信号的新型读出系统。通过对一个DLG同时使用新旧两套不同的读出系统进行测试,得到了相同的测试结果,表明电子信号处理和光学信号处理在分离左、右旋陀螺信号方面是等效的。在此基础上,首先使用模数转换器对DLG的光电转换信号进行采样,然后进行了数字信号处理,并研制出了全数字化读出系统。新型读出系统不使用四分之一波片和偏振片等光学元件,具有温度稳定性好、结构简单、全数字化等优点,有利于四频陀螺性能的提高和批量生产。
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| 关 键 词： | 光学测量 四频差动激光陀螺 电子信号处理 读出系统 光学信号处理 |
Study on signal readout of four-frequency differential laser gyro based on electronic signal processing |
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| WANG Zhi-guo,LONG Xing-wu,WANG Fei,LIU Zheng,XU Guang-ming.Study on signal readout of four-frequency differential laser gyro based on electronic signal processing[J].Optical Technique,2009,35(4). |
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| Authors: | WANG Zhi-guo LONG Xing-wu WANG Fei LIU Zheng XU Guang-ming |
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| Institution: | WANG Zhi-guo,LONG Xing-wu,WANG Fei,LIU Zheng,XU Guang-ming(Department of Opto-Electronic Engineering,College of Opto-Electronic Science and Engineering,National University of Defense Technology,Changsha 410073,China) |
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| Abstract: | In order to overcome the problems of complicate configuration and thermal sensitivity for the current signal readout system of four-frequency differential laser gyros(DLG),a new readout system is developed.The new readout system of electronic signal processing to replace the optical signal processing is used to separate the signals of left circularly polarized(LCP) and right circularly polarized(RCP) gyros.A DLG is tested with the new and old two kinds of readout systems simultaneously.The experimental resu... |
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| Keywords: | optical measurement four-frquency differential laser gyro electronic signal processing readout system optical signal processing |
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