| 激光多普勒双光束横向测速技术研究 |
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| 引用本文： | 王忠凯,毕建民,周昕,陈建国,陈涌,杨泽后,孙鹏.激光多普勒双光束横向测速技术研究[J].激光技术,2006,30(2):183-185. |
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| 作者姓名： | 王忠凯 毕建民 周昕 陈建国 陈涌 杨泽后 孙鹏 |
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| 作者单位： | 1.四川大学, 光电技术系, 成都, 610065; |
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| 摘 要： | 为了实现基于CWCO2激光的运动目标横向速度测量,使用双光束方式在室内进行了实验,得到了较清晰的多普勒频移信号,并对信号数据进行了滤波处理,以提高信噪比。计算出了运动目标速度并与实际速度进行了比较。结果表明,测得速度值与实际值相当接近。
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| 关 键 词： | 激光技术 多普勒测速 双光束 测量区 快速傅里叶变换 |
| 文章编号： | 1001-3806(2006)02-0183-03 |
| 收稿时间： | 2005-09-12 |
| 修稿时间： | 2005-09-29 |
Investigation on dual-beam Doppler speedometer based on CO2 lasers |
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| WANG Zhong-kai,BI Jian-min,ZHOU Xin,CHEN Jian-guo,CHEN Yong,YANG Ze-hou,SUN Peng.Investigation on dual-beam Doppler speedometer based on CO2 lasers[J].Laser Technology,2006,30(2):183-185. |
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| Authors: | WANG Zhong-kai BI Jian-min ZHOU Xin CHEN Jian-guo CHEN Yong YANG Ze-hou SUN Peng |
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| Affiliation: | 1. Department of Optoelectronics, Sichuan University, Chengdu 610064, China; 2. China Science Academy of Weapons, Beijing 100089, China; 3. Southwest Institute of Technical Physics, Chengdu 610041, China |
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| Abstract: | An experiment set-up is constructed to measure the transverse velocity of a moving target by using dual beam mode of CW CO_2 laser in the laboratory.The experiment is conducted in the laboratory using dual-beam mode and clear Doppler frequency signals are recorded,and signal data filtering is performed leading to an enhanced SNR.The calculated velocity of the moving target is compared with the actual velocity.The result shows that the measured velocity corresponds with the actual velocity very well. |
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| Keywords: | laser technique Doppler speedometer dual-beam measurement volume fast Fourier transform(FFT) |
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