High-resolution modal analysis

Details High-resolution modal analysis High-resolution modal analysis

2009-09-04

arxiv.org/abs/0909.0885v1

Journal of Sound and Vibration 325, 4-5 (2009) 852?869

Physics

Data Analysis, Statistics and Probability

Scientific paper

10.1016/j.jsv.2009.04.019

Usual modal analysis techniques are based on the Fourier transform. Due to the Delta T . Delta f limitation, they perform poorly when the modal overlap mu exceeds 30%. A technique based on a high-resolution analysis algorithm and an order-detection method is presented here, with the aim of filling the gap between the low- and the high-frequency domains (30%

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