MICRO-VIBRATION

作品数:24被引量:45H指数:4
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相关领域:航空宇航科学技术更多>>
相关作者:张文静闫海涛王东平闫震更多>>
相关机构:河北农业大学更多>>
相关期刊:《Optoelectronics Letters》《Frontiers of Materials Science》《Journal of Donghua University(English Edition)》《Applied Mathematics and Mechanics(English Edition)》更多>>
相关基金:国家自然科学基金重庆市自然科学基金河北省自然科学基金福建省自然科学基金更多>>
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Research on separation and enhancement of speech micro-vibration from macro motion被引量:2
《Optoelectronics Letters》2020年第6期462-466,共5页CHEN Hong-kai WANG Ting-feng WU Shi-song LI Yuan-yang 
supported by the National Natural Science Foundation of China (No.61805234);the Key Research Program of Frontier Science,CAS (No.QYZDB-SSWSLH014);the Foundation of State Key Laboratory of Laser Interaction with Matter (No.SKLLIM1704)。
Based on the 1 550 nm all-fiber pulsed laser Doppler vibrometer(LDV) system independently developed by our laboratory, empirical mode decomposition(EMD) and optimally modified Log-spectral amplitude estimator(OM-LSA) ...
关键词:Doppler LDV LSA EMD Research on separation and enhancement of speech micro-vibration from macro motion 
Micro-vibration parameters fast demodulation algorithm and experiment of self-mixing interference
《Optoelectronics Letters》2014年第4期304-307,共4页王秀琳 王路 陈敏亮 黄文财 
supported by the National Natural Science Foundation of China(No.61308048);the Natural Science Foundation of Fujian Province(No.2013J01244);the Li Shangda Foundation in discipline construction(No.C513030)
Self-mixing interference(SMI) technique can be used for measuring vibration, displacement, velocity and absolute distance. In this paper, a simple demodulation algorithm for fast measuring frequency and amplitude of a...
关键词:自混合干涉效应 解调算法 实验系统 微振动 测量频率 最大误差 绝对距离 简谐振动 
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