相关检测技术在单脉冲激光测距中的应用

夏冰; 张鑫; 孙峰

光学与光电技术, 2015, 13 (2): 35, 网络出版: 2015-04-28

相关检测技术在单脉冲激光测距中的应用

Application of Correlation Detection Technology in Monopulse Laser Ranging

论文大纲

夏冰 ^*张鑫孙峰

作者单位

华中光电技术研究所—武汉光电国家实验室, 湖北武汉 430223

摘要

采用雪崩光电二极管探测微弱激光脉冲回波信号,依据相关检测技术对微弱的激光回波进行处理,从而获得较高信噪比回波信号.首先通过软件仿真验证了该实验方法的可行性,并在实验中采用消光比测量法对激光测距机测距能力进行了测试,将信噪比为-2.1 dB原始信号经过相关检测后提升至10 dB,消光比从原始激光测距模式的30 dB提升至44 dB.实验结果表明采用相关检测方法可以提高激光测距机测距能力及精准度,具有一定实用价值.

Abstract

In this paper,the APD is adopted to detect the weak laser pulse echo signal.According to the correlation detection method for weak laser echo signal processed,a high SNR echo signal is obtained.First,through software simulation,the feasibility of this method is validated,and the extinction ratio measurement method for ranging ability testing is adopted.To improve the SNR from -2.1 dB to 10 dB,the ranging ability increases from 30 dB to 44 dB.The experimental results show that the correlation detection technology can improve the ability of laser range,and it has a good practicability.

参考文献

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夏冰, 张鑫, 孙峰. 相关检测技术在单脉冲激光测距中的应用[J]. 光学与光电技术, 2015, 13(2): 35. XIA Bing, ZHANG Xin, SUN Feng. Application of Correlation Detection Technology in Monopulse Laser Ranging[J]. OPTICS & OPTOELECTRONIC TECHNOLOGY, 2015, 13(2): 35.

相关检测技术在单脉冲激光测距中的应用

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