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机译:Modal Parameter Identification of Time-Varying and Weakly Nonlinear Systems Based on an Improved Empirical Envelope Method
Dalian Univ Technol;
Modal parameter identification; improved empirical envelope (IEE) method; timevarying system; weakly nonlinear system; threshold denoising; moving average filter; STOCHASTIC SUBSPACE IDENTIFICATION; HILBERT TRANSFORM; DECOMPOSITION METHOD; FREQUENCY;