Operation modal analysis following fast independent component analysis

2016 ◽  
Vol 52 (1-2) ◽  
pp. 103-111 ◽  
Author(s):  
Cheng Wang ◽  
Jianying Wang ◽  
Xiongming Lai ◽  
Bineng Zhong ◽  
Xiangyu Luo ◽  
...  
Keyword(s):  
Independent Component Analysis ◽  
Modal Analysis ◽  
Component Analysis ◽  
Independent Component ◽  
Fast Independent Component Analysis

Denoising Algorithm of Lidar by Fast Independent Component Analysis

2013 ◽  
Vol 50 (4) ◽  
pp. 040101
Author(s):  
阮俊 Ruan Jun ◽  
杨成武 Yang Chengwu ◽  
阚瑞峰 Kan Ruifeng
Keyword(s):  
Independent Component Analysis ◽  
Component Analysis ◽  
Independent Component ◽  
Fast Independent Component Analysis

scholarly journals Comparison of Different Independent Component Analysis Algorithms for Output-Only Modal Analysis

2016 ◽  
Vol 2016 ◽  
pp. 1-25 ◽  
Author(s):  
Jianying Wang ◽  
Cheng Wang ◽  
Tianshu Zhang ◽  
Bineng Zhong
Keyword(s):  
Independent Component Analysis ◽  
Parameter Identification ◽  
Modal Analysis ◽  
Optimization Methods ◽  
Component Analysis ◽  
Independent Component ◽  
Modal Parameter ◽  
Modal Parameter Identification ◽  
Modal Parameters Identification ◽  
Output Only

From the principle of independent component analysis (ICA) and the uncertainty of amplitude, order, and number of source signals, this paper expounds the root reasons for modal energy uncertainty, identified order uncertainty, and modal missing in output-only modal analysis based on ICA methods. Aiming at the problem of lack of comparison and evaluation of different ICA algorithms for output-only modal analysis, this paper studies the different objective functions and optimization methods of ICA for output-only modal parameter identification. Simulation results on simply supported beam verify the effectiveness, robustness, and convergence rate of five different ICA algorithms for output-only modal parameters identification and show that maximization negentropy with quasi-Newton iterative of ICA method is more suitable for modal parameter identification.

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