A fault diagnosis method for radar antenna pedestal based on VMD and energy entropy reconstruction

Yiqun Zhang

doi:10.1117/12.3038088

7 August 2024 A fault diagnosis method for radar antenna pedestal based on VMD and energy entropy reconstruction

Yiqun Zhang

Proceedings Volume 13229, Seventh International Conference on Advanced Electronic Materials, Computers, and Software Engineering (AEMCSE 2024); 132291B (2024) https://doi.org/10.1117/12.3038088
Event: Seventh International Conference on Advanced Electronic Materials, Computers, and Software Engineering (AEMCSE 2024), 2024, Nanchang, China

Abstract

The radar antenna pedestal usually works at very low speed and the vibration signal of antenna pedestal is composed of multiple interference signals. Influenced by multi-component signals and strong noise, the characteristics of early faults are weak. To solve the problem, a fault diagnosis method for radar antenna pedestal based on VMD and energy entropy reconstruction is proposed. The vibration signal is decomposed into multiple IMFs using VMD. Then fault-informative IMFs strong are selected based on cross- correlation and energy criterion. Finally, the analytical signal is reconstructed by selected IMFs and demodulated. Experimental results show that the proposed method could strengthen modulation components caused by weak faults and the assembly fault of the antenna pedestal is successfully diagnosed in real application.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Yiqun Zhang "A fault diagnosis method for radar antenna pedestal based on VMD and energy entropy reconstruction", Proc. SPIE 13229, Seventh International Conference on Advanced Electronic Materials, Computers, and Software Engineering (AEMCSE 2024), 132291B (7 August 2024); https://doi.org/10.1117/12.3038088

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