| 一种应用于高精度脉冲激光测距的自动增益控制方法 |
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| 引用本文： | 郭颖,陈弈,黄庚华,舒嵘.一种应用于高精度脉冲激光测距的自动增益控制方法[J].激光与红外,2010,40(4):345-348. |
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| 作者姓名： | 郭颖 陈弈 黄庚华 舒嵘 |
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| 作者单位： | 中国科学院上海技术物理研究所,上海,200083 |
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| 基金项目： | 国家“973”计划平台振动带来的激光孔径合成相位误差机理与测量方法研究项目(No.2009CB724004)资助 |
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| 摘 要： | 对高精度脉冲激光测距仪而言,引入自动增益控制技术可以在保证测距精度的前提下极大地扩展接收系统的动态范围。本文分析并讨论了激光测距仪回波接收系统中增益调整的手段,在此基础上给出了高精度测距条件下增益控制的范围,提出了一种根据实时测量的噪声和信号幅度动态调整接收系统增益的自动增益控制方法。实验结果表明,含有自动增益控制的回波接收系统可以自适应于回波功率的变化,在宽动态范围内保证高精度测距。
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| 关 键 词： | 激光测距 高精度 自动增益控制 |
Method of automatic gain control used in high precision pulse laser rangefinder |
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| GUO Ying,CHEN Yi,HUANG Geng-hu,SHU Rong.Method of automatic gain control used in high precision pulse laser rangefinder[J].Laser & Infrared,2010,40(4):345-348. |
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| Authors: | GUO Ying CHEN Yi HUANG Geng-hu SHU Rong |
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| Affiliation: | Shanghai Institute of Technical Physics;Chinese Academy of Science;Shanghai 200083;China |
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| Abstract: | For a high precision pulse laser rangefinder,the use of automatic gain control(AGC) technology can greatly extend dynamic range of the receiver without loss of distance accuracy.In this paper,the receiver model as well as the means to adjust the gain is discussed and analyzed.Based on this analysis,the dynamic range of gain control is calculated under the condition of high precision range finding.Then an AGC method of changing the gain based on the real-time measured amplitude of the signal and noise is pro... |
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| Keywords: | laser range finding high precision automatic gain control(AGC) |
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