Zobrazeno 1 - 10
of 418
pro vyhledávání: '"L.T. Bruton"'
Number-theoretic transforms (NTTs) have been applied in the fragile watermarking of digital images. A block-parallel systolic-array architecture is proposed for watermarking based on the 2-D special Hartley NTT (HNTT). The proposed core employs two 2
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::511dc714186d386a187608a5ef28b44d
http://arxiv.org/abs/2206.01146
http://arxiv.org/abs/2206.01146
Publikováno v:
IEEE Transactions on Aerospace and Electronic Systems. 51:669-687
A 2-D massively parallel, high throughput, systolic array for a spatio-temporal wave-digital filter (WDF) architecture is proposed. RF receive mode aperture beam personalities are achieved using 2-D fan filters with dynamically steerable passband dir
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::77a4f0f2ff5892862d1d6df7db8bab84
https://doi.org/10.1109/taes.2015.7073521
https://doi.org/10.1109/taes.2015.7073521
Publikováno v:
IEEE Transactions on Circuits and Systems I: Regular Papers. 60:1845-1856
A low-complexity multirate 3-D spatio-temporal FIR cone and frustum filter structure is proposed having potential applications as a spatio-temporal directional filter. The cone filter structure employs a 1-D modified discrete Fourier transform (DFT)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::efe60c0a8ea96073c54159b083c7d494
https://doi.org/10.1109/tcsi.2012.2230511
https://doi.org/10.1109/tcsi.2012.2230511
Autor:
Arjuna Madanayake, Donald G. Dansereau, T.K. Gunaratne, Stefan B. Williams, Chamith Wijenayake, L.T. Bruton
Publikováno v:
IEEE Circuits and Systems Magazine. 13:10-43
Advances in the performance of VLsi circuits are leading to a number of emerging applications of multidimensional (md) filters. Early progress was focused on the numerical design of two dimensional (2-d) transfer functions and the challenging stabili
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0d17e39e7d5ab7319ebe2892e282d0b4
https://doi.org/10.1109/mcas.2012.2237141
https://doi.org/10.1109/mcas.2012.2237141
Publikováno v:
IEEE Transactions on Very Large Scale Integration (VLSI) Systems. 20:2241-2254
A broadband digital beamforming algorithm is proposed for directional filtering of temporally-broadband bandpass space-time plane-waves at radio frequencies (RFs). The enhancement of desired waves, as well as rejection of undesired interfering plane-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::841e984ea2f44625570c7560442a3470
https://doi.org/10.1109/tvlsi.2011.2174167
https://doi.org/10.1109/tvlsi.2011.2174167
Publikováno v:
IEEE Transactions on Circuits and Systems II: Express Briefs. 59:419-423
Analog filter circuits that are realized in continuous-time discrete-space domain are proposed for implementing 2-D infinite impulse response (IIR) spatiotemporal transfer functions having beam-shaped passbands. These filters may be used for analog b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::95952f54ec1b6572ee7f2615c70e6ed6
https://doi.org/10.1109/tcsii.2012.2200170
https://doi.org/10.1109/tcsii.2012.2200170
Publikováno v:
Multidimensional Systems and Signal Processing. 25:17-39
Two dimensional space---time fan filters may be used for the highly-selective enhancement of spatio-temporal plane-waves on the basis of their directions of arrival. Unlike uniform bandwidth beam filters, ideal fan filters transmit passband signals o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bfe19e8187778a3742c38848115535d5
https://doi.org/10.1007/s11045-012-0183-6
https://doi.org/10.1007/s11045-012-0183-6
Publikováno v:
Circuits, Systems, and Signal Processing. 31:1229-1243
The superior broadband performance of 2D IIR frequency-planar beam filters, relative to conventional 2D FIR true-time-delay beamforming, has recently been reported using computational electromagnetics and real-time emulations on an antenna test range
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2b4629d0caf1bc0bfce64f1c196aaa80
https://doi.org/10.1007/s00034-011-9370-1
https://doi.org/10.1007/s00034-011-9370-1
Publikováno v:
Circuits, Systems, and Signal Processing. 31:595-610
Ultra-wideband (UWB) wireless beamforming systems may potentially be implemented digitally at multi-gigahertz clock frequencies using low-precision systolic array realizations of two-dimensional (2D) infinite impulse response (IIR) beam plane-wave fi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1d3d9d8a1c6ce23b619e6127d6ec93d0
https://doi.org/10.1007/s00034-011-9325-6
https://doi.org/10.1007/s00034-011-9325-6
Publikováno v:
IEEE Transactions on Antennas and Propagation. 59:2029-2040
A real-time spatio-temporal (ST) 3D FIR Frustum filter is proposed for improving the SNR of broadband focal plane array (FPA) signals. The 3D stop band of the proposed filter attenuates non-reflected off-dish signals, such as radio frequency interfer
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a7be2d83bef44ac2715a4d7ad0ff21b5
https://doi.org/10.1109/tap.2011.2122221
https://doi.org/10.1109/tap.2011.2122221