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Acoustic signal detection system using PGC demodulation algorithm and laser Doppler effect
Zhang, Qin; Zhang, Jianyong; Zeng, Hualin; Li, Liyan; Zhou, Yan; Zhang, Q.(08120078@bjtu.edu.cn)
2011
Source PublicationHongwai yu Jiguang Gongcheng/Infrared and Laser Engineering
ISSN10072276
Volume40Issue:6Pages:1115-1118
AbstractAcoustic signal detection using laser Doppler effect system to implement non-contact, remote, and high sensitive acoustic signal vibration detection was proposed. In the system, the reference signal of a Michelson interferometer was modulated by piezoelectric ceramics(PZT), the received signal was demodulated by the phase generated carrier(PGC) algorithm. Therefore, the system can improve the anti-interference performance and has the advantages of simple optical configuration and low cost. The parameters of the PGC algorithm were optimized according to the analytic form of the interference signal. The numerical results show that the optimum value of the parameter is2.63. Finally, the experimental results illustrate that the system can dynamically detect the vibration caused by sound wave and can recover voice signal from the received signal.
metadata_83光电系统实验室
KeywordAcoustic Waves Algorithms Audio Systems Classifiers Demodulation Doppler Effect Michelson Interferometers Optical Variables Measurement Piezoelectric Ceramics Piezoelectricity Waves
Subject Area光电子学
Indexed ByEI
Language中文
Date Available2012-06-14
Document Type期刊论文
Identifierhttp://ir.semi.ac.cn/handle/172111/23097
Collection光电系统实验室
Corresponding AuthorZhang, Q.(08120078@bjtu.edu.cn)
Recommended Citation
GB/T 7714
Zhang, Qin,Zhang, Jianyong,Zeng, Hualin,et al. Acoustic signal detection system using PGC demodulation algorithm and laser Doppler effect[J]. Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering,2011,40(6):1115-1118.
APA Zhang, Qin,Zhang, Jianyong,Zeng, Hualin,Li, Liyan,Zhou, Yan,&Zhang, Q..(2011).Acoustic signal detection system using PGC demodulation algorithm and laser Doppler effect.Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering,40(6),1115-1118.
MLA Zhang, Qin,et al."Acoustic signal detection system using PGC demodulation algorithm and laser Doppler effect".Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering 40.6(2011):1115-1118.
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