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基于光学多普勒频移的低空速测量方法研究

Research of low-airspeed measurement based on optical Doppler frequency shift

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摘要

为了解决传统大气数据系统低空速测量不准确的问题, 采用了以光学多普勒频移为基本原理的低空速测量方法, 并以快速傅里叶变换为数据处理框架构建了一套实验样机, 通过标准风洞实验验证, 得出系统能稳定测量的最小风速为0.22m/s。结果表明, 该系统在不同风速下, 均具有较高的分辨率和稳定性。

Abstract

In order to solve the incorrect low-airspeed detection of traditional air data system, a low-airspeed detection method based on optical Doppler frequency shift was founded. An experimental prototype was built by using fast Fourier transform as data processing framework. By the experiment of standard wind tunnel, the system can measure minimum wind speed of 0.22m/s. The results show that the system has high resolution and stability at different wind speeds.

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中图分类号:TP79

DOI:10.7510/jgjs.issn.1001-3806.2016.05.003

所属栏目:激光与光电子技术应用

基金项目:中航工业技术创新基金资助项目(2012D16132)

收稿日期:2015-07-19

修改稿日期:2015-09-22

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作者单位    点击查看

王晓维:中国航空工业集团公司 成都凯天电子股份有限公司, 成都 610091
梁应剑:中国航空工业集团公司 成都凯天电子股份有限公司, 成都 610091
李 翔:中国航空工业集团公司 成都凯天电子股份有限公司, 成都 610091
龙彦志:中国航空工业集团公司 成都凯天电子股份有限公司, 成都 610091
梅运桥:中国航空工业集团公司 成都凯天电子股份有限公司, 成都 610091

联系人作者:王晓维(xwwang25@hotmail.com)

备注:王晓维(1988-), 男, 硕士, 助理工程师, 主要从事激光遥测研究。

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引用该论文

WANG Xiaowei,LIANG Yingjian,LI Xiang,LONG Yanzhi,MEI Yunqiao. Research of low-airspeed measurement based on optical Doppler frequency shift[J]. Laser Technology, 2016, 40(5): 629-632

王晓维,梁应剑,李 翔,龙彦志,梅运桥. 基于光学多普勒频移的低空速测量方法研究[J]. 激光技术, 2016, 40(5): 629-632

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