
科学技术与工程

中国技术经济学会
Blind Deconvolution Algorithm Based on NRBO to Optimize Filter Coefficients and Its Application in Early Weak Fault Diagnosis of Rolling Bearings
Ming-yue YANG , Zhang DANG , Tian-ci XIA , Rui YUAN
Science Technology and Engineering ›› 2025, Vol. 25 ›› Issue (18) : 7604 -7612.
In traditional blind deconvolution algorithms, recalculating the gradient or redesigning the optimization approach for filter coefficients becomes necessary when altering the characterization index. This requirement can render the development process of new blind deconvolution algorithms inflexible. To address these issues, a blind deconvolution algorithm that employs NRO(Newton-Raphson optimizer) to seek out the optimal filter coefficients was proposed. Initially, generalized spherical coordinate transformation was used to define the search range for the filter coefficients. Subsequently, the generalized lp/lq norm of the envelope spectrum was adopted as the characterization index. The proposed blind deconvolution algorithm is then utilized for the early detection of minor faults in rolling bearings. Both simulation and experimental results confirm the efficacy of the proposed algorithm, demonstrating its faster convergence rate compared to classical PSO(particle swarm optimization).
blind deconvolution / NRBO / parameter optimization / fault diagnosis / rolling bearing
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