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eess.SP2023★ 9 cited
Convex Estimation of Sparse-Smooth Power Spectral Densities from Mixtures of Realizations with Application to Weather Radar
Hiroki Kuroda, Daichi Kitahara, Eiichi Yoshikawa +2
In this paper, we propose a convex optimization-based estimation of sparse and smooth power spectral densities (PSDs) of complex-valued random processes from mixtures of realizatio…
eess.SP2021
Design of Tight Minimum-Sidelobe Windows by Riemannian Newton's Method
Daichi Kitahara, Kohei Yatabe
The short-time Fourier transform (STFT), or the discrete Gabor transform (DGT), has been extensively used in signal analysis and processing. Their properties are characterized by a…
eess.SP2020★ 1 cited
Frequency-Undersampled Short-Time Fourier Transform
Daichi Kitahara
The short-time Fourier transform (STFT) usually computes the same number of frequency components as the frame length while overlapping adjacent time frames by more than half. As a…