All-fiber monostatic pulsed laser Doppler vibrometer: A digital signal processing method to eliminate cochannel interference

doi:10.1016/j.optlastec.2019.105952

CIOMP OpenIR

	All-fiber monostatic pulsed laser Doppler vibrometer: A digital signal processing method to eliminate cochannel interference
	S. P. Peng, S. S. Wu, Y. Y. Li and H. K. Chen
	2020
发表期刊	Optics and Laser Technology
ISSN	0030-3992
卷号	124 页码:8
摘要	A 1.551.mu m all-fiber monostatic pulsed laser Doppler vibrometer is developed to overcome demodulation failures caused by cochannel interference. We discussed the waveform design guidelines and proposed a digital range gated signal processing method to avoid the "Narcissus" effects. The resulting phase-modulated intermediate frequency (IF) of 40 MHz, which carries the information of target vibration, is demodulated down to the baseband using a specific in-phase and quadrature (I&Q) demodulator. An experiment is carried out at a 23 m standoff with pulse repetition interval of 50 ns, single pulse energy of 0.25 nJ, and pulse repetition frequency of 1 MHz to verify the performance of the prototype. The experimental results show that the pulsed LDV system has the ability to demodulate the acoustic vibration at a stand-off about several dozens of meters using an ultra-low output laser power.
DOI	10.1016/j.optlastec.2019.105952
URL	查看原文
收录类别	SCI ; EI
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/64295
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	S. P. Peng, S. S. Wu, Y. Y. Li and H. K. Chen. All-fiber monostatic pulsed laser Doppler vibrometer: A digital signal processing method to eliminate cochannel interference[J]. Optics and Laser Technology,2020,124:8.
APA	S. P. Peng, S. S. Wu, Y. Y. Li and H. K. Chen.(2020).All-fiber monostatic pulsed laser Doppler vibrometer: A digital signal processing method to eliminate cochannel interference.Optics and Laser Technology,124,8.
MLA	S. P. Peng, S. S. Wu, Y. Y. Li and H. K. Chen."All-fiber monostatic pulsed laser Doppler vibrometer: A digital signal processing method to eliminate cochannel interference".Optics and Laser Technology 124(2020):8.

条目包含的文件		下载所有文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
All-fiber monostatic（2646KB）	期刊论文	出版稿	开放获取	CC BY-NC-SA	浏览下载