Results 21 to 30 of about 731 (131)
Two-Dimensional Sparse Arrays with Hole-Free Coarray and Reduced Mutual Coupling [PDF]
, 2016 Two-dimensional sparse arrays with hole-free difference coarrays, like billboard arrays and open box arrays, can identify O(N^2) uncorrelated source directions (DOA) using N sensors.
Liu, Chun-Lin, Vaidyanathan, P. P.
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Fourier-Based Methods for Passive Sensing and Imaging [PDF]
, 2022 Sensor arrays play an instrumental role in a variety of applications, including radar, sonar, radio astronomy, and wireless communications. Employing an array of sensors permits direction-of-arrival (DOA) estimation, interference suppression, and imaging
Mills, Kenneth Ralph
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Modelling for Robust Feedback Control of Fluid Flows [PDF]
, 2015 This paper addresses the problem of obtaining low-order models of fluid flows for the purpose of designing robust feedback controllers. This is challenging since whilst many flows are governed by a set of nonlinear, partial differential-algebraic ...
A. S. Sharma +19 more
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Self Duality and Oblique Confinement in Planar Gauge Theories [PDF]
, 1994 We investigate the non-perturbative structure of two planar $Z_p \times Z_p$ lattice gauge models and discuss their relevance to two-dimensional condensed matter systems and Josephson junction arrays.
't Hooft +67 more
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Pseudo-random number generators for Monte Carlo simulations on Graphics Processing Units [PDF]
, 2010 Basic uniform pseudo-random number generators are implemented on ATI Graphics Processing Units (GPU). The performance results of the realized generators (multiplicative linear congruential (GGL), XOR-shift (XOR128), RANECU, RANMAR, RANLUX and Mersenne ...
Anderson +25 more
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Minimal Redundancy Linear Array and Uniform Linear Arrays Beamforming Applications in 5G Smart Devices [PDF]
, 2021 Minimum Redundancy Linear Arrays (MRLAs) and Uniform Linear Arrays (ULAs) investigation conducted with the possibility of using them in future 5G smart devices.
Singh, Satyanand
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Tensor-based approach to the co-prime planar array signal processing
Tongxin xuebao, 2020 For the co-prime planar array (CPPA) consisting of two sparse uniform rectangular array (URA),a new processing method based on tensor algebra was proposed to enhance the degrees of freedom (DoF).By dividing each URA into some overlapping subarrays,the ...
Wei RAO, Yufeng GUI, Dan LI
doaj +2 more sources
Sparse Active Rectangular Array with Few Closely Spaced Elements
, 2018 Sparse sensor arrays offer a cost effective alternative to uniform arrays. By utilizing the co-array, a sparse array can match the performance of a filled array, despite having significantly fewer sensors.
Koivunen, Visa, Rajamäki, Robin
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Martin Gardner and His Influence on Recreational Math [PDF]
, 2020 Recreational mathematics is a relatively new field in the world of mathematics. While sometimes overlooked as frivolous since those who practice it need no advanced knowledge of the subject, recreational mathematics is a perfect transition for people to ...
DeLee, Rebecca
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Polygonal vortex beams in quasi-frequency-degenerate states
, 2018 We originally demonstrate the vortex beams with patterns of closed polygons [namely polygonal vortex beams (PVBs)] generated by a quasi-frequency-degenerate (QFD) Yb:CALGO laser resonator with astigmatic transformation. The PVBs with peculiar patterns of
Fu, Xing +4 more
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