Remote audio signals detection using a partial-fiber laser Doppler vibrometer

doi:10.1016/j.apacoust.2017.09.028

CORC > 长春光学精密机械与物理研究所 > 中国科学院长春光学精密机械与物理研究所

	Remote audio signals detection using a partial-fiber laser Doppler vibrometer
	Wu, S. S.; Lv, T.; Han, X. Y.; Yan, C. H.; Zhang, H. Y.
刊名	Applied Acoustics
	2018
卷号	130 页码:216-221
关键词	LDV Laser hearing Partial-fiber Acoustics
ISSN号	0003-682X
DOI	10.1016/j.apacoust.2017.09.028
英文摘要	All-fiber laser Doppler vibrometer (LDV) systems have great potential in the application of remote acoustic detection. However, the system performance is impaired due to the serious intermediate frequency (IF) crosstalk signal, which is caused by the fiber circulator. In this paper, a system adopting a partial-fiber structure is proposed and analyzed. Simulative and experimental analysis indicate that the IF crosstalk signal is mainly caused by the fiber circulator, and it damages demodulation signal. In order to reduce the IF crosstalk signal, a polarization prism is employed to substitute the circulator. Experimental results reveal that the IF crosstalk signal can be eliminated by the partial-fiber LDV effectively. The comprehensible speech signals within the range of 50m can be obtained.
内容类型	期刊论文
源URL	[http://ir.ciomp.ac.cn/handle/181722/61128]
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	Wu, S. S.,Lv, T.,Han, X. Y.,et al. Remote audio signals detection using a partial-fiber laser Doppler vibrometer[J]. Applied Acoustics,2018,130:216-221.
APA	Wu, S. S.,Lv, T.,Han, X. Y.,Yan, C. H.,&Zhang, H. Y..(2018).Remote audio signals detection using a partial-fiber laser Doppler vibrometer.Applied Acoustics,130,216-221.
MLA	Wu, S. S.,et al."Remote audio signals detection using a partial-fiber laser Doppler vibrometer".Applied Acoustics 130(2018):216-221.