Pseudodifferential operators on time-frequency invariant Banach spaces and applications to Gabor Frames
Sign Up to like & getrecommendations! Published in 2024 at "Journal of Pseudo-Differential Operators and Applications"
DOI: 10.1007/s11868-025-00722-6
Abstract: Starting from the study of pseudodifferential operators with completely periodic symbols, we obtain results of continuity and invertibility of a class of Gabor operators on time-frequency invariant Banach spaces. As an application, we find sufficient… read more here.
Keywords: frequency invariant; invariant banach; time frequency; operators time ... See more keywords
Efficient Synthesis of Filter-and-Sum Array With Scanned Wideband Frequency-Invariant Beam Pattern and Space-Frequency Notching
Sign Up to like & getrecommendations! Published in 2021 at "IEEE Signal Processing Letters"
DOI: 10.1109/lsp.2021.3053489
Abstract: This work generalizes the Fourier transform (FT)-based frequency-invariant beamforming (FIB) method to the synthesis of scanned frequency-invariant (FI) beam pattern with space-frequency notching for an array with non-isotropic elements. Wideband FI pattern characteristics are described… read more here.
Keywords: invariant beam; beam pattern; space frequency; frequency invariant ... See more keywords
C-Shape Busbar With Frequency Invariant Points for Wideband Current Measurement
Sign Up to like & getrecommendations! Published in 2024 at "IEEE Transactions on Industrial Electronics"
DOI: 10.1109/tie.2023.3299010
Abstract: A yokeless busbar current transducer with frequency-invariant points is presented for the first time in this article. Existing rectangular busbar current transducers suffer from the frequency dependency issue due to the eddy currents in the… read more here.
Keywords: frequency invariant; busbar; invariant points; fluxgate sensors ... See more keywords