Signal processing of vortex flow with noise based on wavelet analysis

CQUET-IR

	Signal processing of vortex flow with noise based on wavelet analysis
	Zeng, Xiaohong
	2014
发表期刊	Sensors and Transducers
卷号	175 期号:7 页码:257-261
摘要	The vortex of low speed flows is difficult to measure resulted in that the output signal of vortex flowmeter appears the spectral line splitting and frequency offset in the low SNR and causes the frequency resolution to be decreased. In the paper, it first conducted the multi-scale wavelet decomposition to the vortex signal with noise, then removed the noise spectrum and carried on power spectrum analysis and frequency correction for the actual signal of stress type vortex flowmeter, and finally determined the vortex signal frequency to be as the basis for designing band-pass filter. By means of Matlab software, it took a signal with noise as an example, and reconstructed an effective sine signal by wavelet denoising algorithm. The simulation experiment shows that the presented method is effective. Copyright © 2014 IFSA Publishing, S. L. © 2014 IFSA Publishing, S. L.
关键词	Algorithms Bandpass filters Flow measurement Flowmeters Frequency allocation MATLAB Signal to noise ratio Spectrum analysis Vortex flow Wavelet analysis Wavelet decomposition Frequency correction Frequency offsets Frequency resolutions Hydrometry Multi-scale wavelet decomposition Vortex flowmeters Vortex signal frequency Wavelet denoising algorithm
收录类别	EI
语种	英语
出版者	International Frequency Sensor Association
EI入藏号	20151100630347
EI分类号	631.1 Fluid Flow, General ; 703.2 Electric Filters ; 716 Telecommunication ; Radar, Radio and Television ; 723 Computer Software, Data Handling and Applications ; 921 Mathematics ; 921.3 Mathematical Transformations ; 941 Acoustical and Optical Measuring Instruments ; 942 Electric and Electronic Measuring Instruments ; 943 Mechanical and Miscellaneous Measuring Instruments ; 943.1 Mechanical Instruments ; 944 Moisture, Pressure and Temperature, and Radiation Measuring Instruments
原始文献类型	Journal article (JA)
文献类型	期刊论文
条目标识符	https://ir.cqcet.edu.cn/handle/39TD4454/3079
专题	重庆电子科技职业大学
作者单位	Chongqing College of Electronic Engineering, Chongqing, China
第一作者单位	重庆电子科技职业大学
推荐引用方式 GB/T 7714	Zeng, Xiaohong. Signal processing of vortex flow with noise based on wavelet analysis[J]. Sensors and Transducers,2014,175(7):257-261.
APA	Zeng, Xiaohong.(2014).Signal processing of vortex flow with noise based on wavelet analysis.Sensors and Transducers,175(7),257-261.
MLA	Zeng, Xiaohong."Signal processing of vortex flow with noise based on wavelet analysis".Sensors and Transducers 175.7(2014):257-261.