48 / 2021-06-23 20:25:00

Weighted Basis Pursuit Denoising Algorithm and Its Application in Gear Fault Diagnosis

In order to improve the fault signature extracting performance in signal processing for gearboxes’fault diagnosis, a weighted Basis Pursuit Denoising(BPD) algorithm is proposed. The algorithm introduces weighted matrix into classical BPD model which picks small threshold values for target frequencies letting them stand out in the spectrum after iteration. The algorithm is verified by both simulation signal and an actual gear fault signal from a test bench, in which the algorithm shows great performance and excellent capability of extracting signal feature of gear fault under complex interference and strong noises distraction.