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利用微波调制激光技术测速的实验研究

Experimental research on velocity measurement based on microwave modulated laser technologies

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摘要

为了验证微波调制激光技术进行速度测量的可靠性, 构建了一套通过微波调制激光技术测速的实验系统。利用激光作为载波, 微波作为模拟调制信号对激光信号进行强度调制,光电探测器对信号光强度进行直接探测。利用射频电路, 获得多普勒频移数据反演发射端和接收端相对运动速度。同时通过测量运动距离和时间计算平均运动速度, 作为第三方数据, 用于与微波调制激光技术测速的数据进行比较。理论分析了这套系统的原理并对其进行了实验验证。实验结果表明, 利用微波调制激光技术测速的数据与第三方数据平均偏差小于2.0%, 符合性好。

Abstract

In order to verify the reliability of the velocity measurement by microwave modulated laser technologies, a system of microwave modulated laser velocity measurement was developed. In the system, laser as carrier was intensity-modulated by microwave signal, transmitted the signal intensity was directly detected by the receiver on a movement platform. After the signal processing, the Doppler frequency shift data was obtained, from which the relative velocity was obtained. Meanwhile, the average velocity as the third party data was calculated by measurements of the movement distance and time, which was used to compare with velocities calculated by Doppler shift. The theoretical analysis and verification experiment are presented and the results show that the velocities calculated by Doppler shift are in good agreement with the third party velocities with a mean deviation of 2.0%.

Newport宣传-MKS新实验室计划
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中图分类号:TN249

DOI:10.3788/irla201746.0306002

所属栏目:激光技术及应用

基金项目:国家自然科学基金(41104099); 高分专项(GFZX04060103)

收稿日期:2016-05-06

修改稿日期:2016-06-13

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作者单位    点击查看

郝文泽:中国科学院国家空间科学中心, 北京 100190中国科学院大学, 北京 100049
胡 雄:中国科学院国家空间科学中心, 北京 100190
徐轻尘:中国科学院国家空间科学中心, 北京 100190
宋 亮:中国科学院国家空间科学中心, 北京 100190
吴小成:中国科学院国家空间科学中心, 北京 100190
王 鑫:北京气象应用研究所, 北京 100190

联系人作者:郝文泽(wenze1323@163.com)

备注:郝文泽(1990-), 男, 硕士生, 主要从事临近空间激光探测技术方面的研究。

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引用该论文

Hao Wenze,Hu Xiong,Xu Qingchen,Song Liang,Wu Xiaocheng,Wang Xin. Experimental research on velocity measurement based on microwave modulated laser technologies[J]. Infrared and Laser Engineering, 2017, 46(3): 0306002

郝文泽,胡 雄,徐轻尘,宋 亮,吴小成,王 鑫. 利用微波调制激光技术测速的实验研究[J]. 红外与激光工程, 2017, 46(3): 0306002

被引情况

【1】李远洋,张合勇,王挺峰,郭 劲,苗锡奎. 锁模相干激光雷达距离-多普勒成像识别仿真. 红外与激光工程, 2018, 47(8): 830004--1

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