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eess.SP2026
A Note on the Orthogonalization of Real-valued Trigonometrical Basis Functions
R. J. Cintra
Adopting an intuitive approach, this letter shows the derivation of three orthogonal real matrices based on the Fourier matrix. Only elementary methods are employed.
eess.SP2025
A Note on the Conversion of Nonnegative Integers to the Canonical Signed-digit Representation
R. J. Cintra
This note addresses the signed-digit representation of nonnegative binary integers. Popular literature methods for the conversion into the canonical signed-digit representation are…
eess.SP2024
An Approximation for the 32-point Discrete Fourier Transform
R. J. Cintra
This brief note aims at condensing some results on the 32-point approximate DFT and discussing its arithmetic complexity.