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Time-Frequency Entropy Analysis of Arc Signal in Non-Stationary Submerged Arc Welding

Time-Frequency Entropy Analysis of Arc Signal in Non-Stationary Submerged Arc Welding
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摘要 The use of time-frequency entropy to quantitatively assess the stability of submerged arc welding process considering the distribution features of arc energy is reported in this paper. Time-frequency entropy is employed to calculate and analyze the stationary current signals, non-stationary current and voltage signals in the submerged arc welding process. It is obtained that time-frequency entropy of arc signal can be used as arc stability judgment criteria of submerged arc welding. Experimental results are provided to confirm the effectiveness of this approach. The use of time-frequency entropy to quantitatively assess the stability of submerged arc welding process considering the distribution features of arc energy is reported in this paper. Time-frequency entropy is employed to calculate and analyze the stationary current signals, non-stationary current and voltage signals in the submerged arc welding process. It is obtained that time-frequency entropy of arc signal can be used as arc stability judgment criteria of submerged arc welding. Experimental results are provided to confirm the effectiveness of this approach.
作者 Kuanfang He Siwen Xiao Jigang Wu Guanbin Wang
机构地区 不详
出处 《Engineering（科研）》 2011年第2期105-109,共5页 工程（英文）（1947-3931）
关键词 NON-STATIONARY SIGNAL SUBMERGED ARC Welding TIME-FREQUENCY ENTROPY Stability Non-Stationary Signal Submerged Arc Welding Time-Frequency Entropy Stability
分类号 O1 [理学—基础数学]
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  • 1付丽华,李宏伟,张猛.基于小波变换的复杂噪声背景中谐波恢复方法[J].工程地球物理学报,2005,2(1):22-28. 被引量：10
  • 2[1]Hlawatsch F,G F Boudreaux-Bartels.Linear and quadratic time-frequency signal representations[J].IEEE Signal Processing,1992,9(2):21～67.
  • 3[4]Gabor D.Theory of Communication[J].Journal of the IEEE.1946,93:429～497.
  • 4[6]Rioul,O,and M Vetterli.Wavelet and signal processing[J].IEEE Signal Processing,1991,8(4):14～38.
  • 5[7]Avijit Chakraborty,David Okaya.Frequency-time decomposition of seismic data using wavelet-based methods[J].Geophysics,1995,60(6):1906～1916.
  • 6[10]Satish Sinha,Partha S Routh,etc.Spectral decomposition of seismic data with continuous-wavelet transform[J].Geophysics,2005,70(6):19～25.
  • 7[11]Hongbing Li,Wenzhi Zhao,etc.Measures of scale based on the wavelet scalogram with applications to seismic attenuation[J],Geophysics.2006,71(5):111～118.
  • 8[12]Jeffrey C,William J.On the existence of discrete Wigner distributions[J].IEEE Signal Processing Letters,1999,6(12):304～306.
  • 9[14]Cohen L.Generalized phase-space distribution functions[J].Jour.Math.Phys,1966,7:781～787.
  • 10[15]Jeffrey C,William J.Shift covariant time-frequency distributions of discrete signals[J].1999,47(1):133～146.

共引文献77

Engineering（科研）
2011年 第2期

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