Modal Parameter Identification of a Structure Under Earthquake via a Wavelet-Based Subspace Approach
Wei-Chih Su,
Liane-Jye Chen,
Chiung-Shiann Huang
Abstract:This paper introduces a novel wavelet-based methodology for identifying the modal parameters of a structure in the aftermath of an earthquake. Our proposed approach seamlessly combines a subspace method with a stationary wavelet packet transform. By relocating the subspace method into the wavelet domain and introducing a weighting function, complemented by a moving window technique, the efficiency of our approach is significantly augmented. This enhancement ensures the precise identification of the time-varyin… Show more
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