摘要
概述基于1/8波片产生正交干涉测振系统解调技术,重点在于通过严密的数学推导,提出改进的解调算法。通过LabVIEW软件编写信号解调过程,定量分析信号中的直流分量对于系统的边模抑制比的影响。理论分析和实验结果对于正交干涉系统解调方法的研究具有重要意义。
This paper summarizes the demodulation technology of orthogonal interferometric vibrometer system based on1/8 wave plate.Its key point is to propose an improved demodulation algorithm through rigorous mathematical derivation.In this paper,the signal demodulation process was written by LabVIEW software,and the influence of the DC component in the signal on the side mode suppression ratio of the system was quantitatively analyzed.The theoretical analysis and experimental results were important to the study of demodulation method of orthogonal interference system.
作者
程小燕
陶灵平
孙赟
Cheng Xiaoyan;Tao Lingping;Sun Yun(Anhui Sanlian University,Hefei 230601,China)
出处
《廊坊师范学院学报（自然科学版）》
2022年第2期22-25,共4页
Journal of Langfang Normal University(Natural Science Edition)
基金
安徽三联学院科研基金项目(KJYB2021002)
安徽三联学院校级质量工程项目(21zlgc079)
安徽三联学院科研基金项目(KJZD2021003)
安徽省质量工程项目(2020jyxm0572)。
关键词
正交干涉
1/8波片
改进算法
信号解调
orthogonal interference
the 1/8 wave plate
improved algorithm
signal demodulation
