Abstract
Given only a few of initial Fourier coefficients for a continuous-time periodic signal, we construct efficient rational approximants to the whole signal everywhere on his domain of definition. The convergence of these approximants depends on the orthonormality of the chosen generating polynomial system {V m+1(eit) :m=0,1,…} into L 2[−π,π]. The form of each V m+1(x) is characterized by recurrence relations dues to the connection between Schur and Szegö theories.
Mathematics Subject Classification (2010): 41A20, 41A21, 42A16, 42C05, 65B99, 65D05, 65T40
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Daras, N.J. (2012). Orthonormality in Interpolation Schemes for Reconstructing Signals. In: Daras, N. (eds) Applications of Mathematics and Informatics in Military Science. Springer Optimization and Its Applications, vol 71. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-4109-0_5
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