Doppler spectrum imaging of vibrating target using laser heterodyne detection

	Doppler spectrum imaging of vibrating target using laser heterodyne detection
	Liu, L.-S.; H.-Y. Zhang; T.-F. Wang; J. Guo and C.-Q. Chen
	2015
发表期刊	Guangxue Jingmi Gongcheng/Optics and Precision Engineering
卷号	23 期号:6 页码:1508-1515
摘要	To recognize the profile of a vibrating target, the Doppler spectral image of the target was captured by using the laser heterodyne detection method. A photo-current model of laser heterodyne signal from the vibrating target was derived based on the instant changing of phase, the target was scanned point by point in the laser direction controlled by a scanning galvanometer, and the data collection was synchro-controlled by the drive voltage of the galvanometer to synchronize data scanning and data capturing. A method called the Ratio in Broaden Spectrum (RIBS) to vibration signal processing was proposed to process the Doppler spectrum come from the vibration signal, by which the data processing was simplified and the effect of peak noise on the signal was eliminated. The characteristic spectra of two targets in different positions were detected at a 5 MHz sampling rate in the experiment to derive the RIBS curve, and Doppler spectrum imaging was captured with different RIBS, which show that when the optimal ratio is set from 0.7 to 0.9, the high quality vibration image can be obtained. The result demonstrates the validity of the RIBS in vibrating target detection and the feasibility of the laser heterodyne detection to capture spectrum images. , 2015, Chinese Academy of Sciences. All right reserved.
文章类型	期刊论文
收录类别	EI
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/56065
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Liu, L.-S.,H.-Y. Zhang,T.-F. Wang,et al. Doppler spectrum imaging of vibrating target using laser heterodyne detection[J]. Guangxue Jingmi Gongcheng/Optics and Precision Engineering,2015,23(6):1508-1515.
APA	Liu, L.-S.,H.-Y. Zhang,T.-F. Wang,&J. Guo and C.-Q. Chen.(2015).Doppler spectrum imaging of vibrating target using laser heterodyne detection.Guangxue Jingmi Gongcheng/Optics and Precision Engineering,23(6),1508-1515.
MLA	Liu, L.-S.,et al."Doppler spectrum imaging of vibrating target using laser heterodyne detection".Guangxue Jingmi Gongcheng/Optics and Precision Engineering 23.6(2015):1508-1515.

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