Source Quantitative Identification by Reference-Based Cubic Blind Deconvolution Algorithm  

作　　者：Xin Luo Zhousuo Zhang Teng Gong Yongjie Li 

机构地区：[1]State Key Laboratory for Manufacturing Systems Engineering,Xi’an Jiaotong University,Xi’an 710049,China

出　　处：《Chinese Journal of Mechanical Engineering》2023年第4期180-195,共16页中国机械工程学报（英文版）

基　　金：Supported by National Natural Science Foundation of China(Grant No.51775410);Science Challenge Project of China(Grant No.TZ2018007).

摘　　要：The semi-blind deconvolution algorithm improves the separation accuracy by introducing reference information.However,the separation performance depends largely on the construction of reference signals.To improve the robustness of the semi-blind deconvolution algorithm to the reference signals and the convergence speed,the reference-based cubic blind deconvolution algorithm is proposed in this paper.The proposed algorithm can be combined with the contribution evaluation to provide trustworthy guidance for suppressing satellite micro-vibration.The normalized reference-based cubic contrast function is proposed and the validity of the new contrast function is theoretically proved.By deriving the optimal step size of gradient iteration under the new contrast function,we propose an efficient adaptive step optimization method.Furthermore,the contribution evaluation method based on vector projection is presented to implement the source contribution evaluation.Numerical simulation analysis is carried out to validate the availability and superiority of this method.Further tests given by the simulated satellite experiment and satellite ground experiment also confirm the effectiveness.The signals of control moment gyroscope and flywheel were extracted,respectively,and the contribution evaluation of vibration sources to the sensitive load area was realized.This research proposes a more accurate and robust algorithm for the source separation and provides an effective tool for the quantitative identification of the mechanical vibration sources.

关 键 词：Quantitative identification Reference-based cubic contrast function Semi-blind deconvolution Satellite micro-vibration Adaptive step size 

分 类 号：TQ171.1[化学工程—玻璃工业]