Recovery of rational functions via Hankel pencil method and sensitivities of the poles

التفاصيل البيبلوغرافية
العنوان: Recovery of rational functions via Hankel pencil method and sensitivities of the poles
المؤلفون: Derevianko, Nadiia
سنة النشر: 2024
المجموعة: Computer Science
Mathematics
مصطلحات موضوعية: Mathematics - Numerical Analysis, 41A20, 42A16, 42C15, 65D15, 94A12
الوصف: In the paper, we develop a new method for the recovery of rational functions. Our idea is based on the property that Fourier coefficients of rational functions have the exponential structure and reconstruction of this exponential structure with the ESPRIT method in the frequency domain. Further we present sensitivity analysis for poles of rational functions reconstructed with our method in case of unstructured and structured perturbations. Finally, we consider several numerical experiments and, using sensitivities, explain the recovery errors for poles.
نوع الوثيقة: Working Paper
URL الوصول: http://arxiv.org/abs/2406.13192
رقم الأكسشن: edsarx.2406.13192
قاعدة البيانات: arXiv