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WISE: Warped Impulse Structure Estimation for Time-Domain Linear Macromodeling

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2 Author(s)
Chi-Un Lei ; Dept. of Electr. & Electron. Eng., Univ. of Hong Kong, Hong Kong, China ; Ngai Wong

We develop a rational function macromodeling algorithm named warped impulse structure estimation for macromodeling of system responses with time-sampled data. The ideas of digital filter design, Walsh theorem, and complementary signal are introduced to convert the macromodeling problem into a non-pole-based Steiglitz-McBride iteration without initial guess and eigenvalue computation. Furthermore, we introduce frequency warping as a preprocessing step to improve the numerical condition in the computation. We demonstrate the fast convergence and the versatile macromodeling requirement adoption through a P-norm identification expansion, using examples from practical structures.

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Components, Packaging and Manufacturing Technology, IEEE Transactions on  (Volume:2 ,  Issue: 1 )