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瞳面干涉激光多普勒测振
鹿彤彤; 陆彦婷; 杜福嘉; 李常伟; 李顺; 张思炯
2022-08
Source Publication光学学报
Volume42Issue:15Pages:97-103
Abstract

提出并实现了一套基于瞳面干涉和小波变换的零差激光测振系统,提高了多普勒信号的质量和信号处理精度。该系统将瞳面干涉技术引入到激光多普勒测振中,克服了像面干涉测振光路中复杂振动引起的探测光斑相对探测器偏移的现象,抑制了漂移引起的多普勒信号被调制的现象。在振动信息提取环节,采用小波脊提取算法提取信号瞬时频率,进而解算得到振动速度。将标准振动台作为振动源,磁电式速度传感器作为测量参考,通过测速与测振实验对系统性能进行验证。实验表明,所设计的系统对振动物体速度的测量与磁电式速度传感器具有一致性,对不同简谐振动参数的测量相对误差均在1.5%以内。

Keyword测量 激光多普勒测振 瞳面干涉 小波变换 振动分析
Subject Area天文技术与方法
Language中文
Document Type期刊论文
Identifierhttp://ir.niaot.ac.cn/handle/114a32/2000
Collection期刊论文
中国科学院南京天文光学技术研究所知识成果
Affiliation南京天文光学技术研究所
Recommended Citation
GB/T 7714
鹿彤彤,陆彦婷,杜福嘉,等. 瞳面干涉激光多普勒测振[J]. 光学学报,2022,42(15):97-103.
APA 鹿彤彤,陆彦婷,杜福嘉,李常伟,李顺,&张思炯.(2022).瞳面干涉激光多普勒测振.光学学报,42(15),97-103.
MLA 鹿彤彤,et al."瞳面干涉激光多普勒测振".光学学报 42.15(2022):97-103.
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