Optimized multi-synchrosqueezing transform: A precise tool for instantaneous frequency identification of non-stationary signals in time-varying structures

Jing-Liang Liu, Yu-Zu Li, Wen-Ting Zheng, College of Transportation and Civil Engineering, Fujian Agriculture and Forestry University, College of Civil Engineering, Fuzhou University, College of Civil Engineering, Fujian University of Technology

Journal of Vibration and Control

Published online on March 13, 2026

Abstract

Journal of Vibration and Control, Ahead of Print.
Engineering structures in operation are inherently time-varying structures and the resultant response signals exhibit non-stationarity. As a consequence, it is crucial to identify instantaneous modal properties of such non-stationary signals via signal ...