| 能量重心校正法在提高激光多普勒测速精度中的应用 |
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| 引用本文： | 于啸,洪光烈,凌元,崔桂华,舒嵘.能量重心校正法在提高激光多普勒测速精度中的应用[J].激光与光电子学进展,2012(9):92-96. |
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| 作者姓名： | 于啸 洪光烈 凌元 崔桂华 舒嵘 |
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| 作者单位： | 中国科学院上海技术物理研究所空间主动光电系统技术实验室 |
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| 基金项目： | 国家973计划(2009CB72400402)资助课题 |
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| 摘 要： | 多普勒效应可以用于激光雷达对目标速度的探测,在处理探测信号的频谱时,由于栅栏效应的存在,会导致离散多普勒频谱和真实速度之间的偏差。在雷达测速系统中运用能量重心校正算法来对离散频率进行校正,从而达到提高测速精度的目的。实验结果表明,该雷达测速系统的探测精度优于厘米每秒量级。
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| 关 键 词： | 测量 光纤光学 激光雷达 多普勒 能量重心校正 |
Energy Centrobaric Correction Method Applied in Velocity Accuracy Enhancement in Doppler Laser Radar System |
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| Yu Xiao Hong Guanglie Ling Yuan Cui Guihua Shu Rong.Energy Centrobaric Correction Method Applied in Velocity Accuracy Enhancement in Doppler Laser Radar System[J].Laser & Optoelectronics Progress,2012(9):92-96. |
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| Authors: | Yu Xiao Hong Guanglie Ling Yuan Cui Guihua Shu Rong |
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| Affiliation: | Yu Xiao Hong Guanglie Ling Yuan Cui Guihua Shu Rong(Space Active Electronic-Optical Systems Laboratory,Shanghai Institute of Technical Physics, Chinese Academy of Sciences,Shanghai 200083,China) |
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| Abstract: | Doppler effect can be used to detect target velocity based on laser radar system.When processing the signal spectrum,error between Doppler frequency and target velocity is caused by picket fence effect.In order to improve the velocity detection accuracy,energy centrobaric correction method is demonstrated to correct discrete spectrum.Experiment data indicate that the velocity accuracy is better than 1 cm/s. |
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| Keywords: | measurement fiber optics laser radar Doppler energy centrobaric correction |
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