Synchrosqueezing Transform for High Resolution Time-Frequency Analysis of Shock and Vibration Measurements

Abstract

This article presents the use of the synchrosqueezing transform (SST) for the timefrequency analysis of shock and vibration measurements. The time-frequency resolution properties of SST is demonstrated by analyzing acceleration measurements from pallets dropped from heights and vibration of pallets acquired in controlled laboratory settings. The article presents results that indicate that SST, in conjunction with continuous wavelet transform (CWT) based preprocessing for noise reduction, can be used as an effective spectral analysis tool for shock and vibration measurements.