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Generalized Time Domain Velocity Vector
ICASSP 2022 - 2022 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2022 We introduce and analyze Generalized Time Domain Velocity Vector (GTVV), an extension of the previously presented acoustic multipath footprint extracted from the Ambisonic recordings. GTVV is better adapted to adverse acoustic conditions, and enables efficient parameter estimation of multiple plane wave components in the recorded multichannel mixture ...
Srdan Kitic, Jérôme Daniel
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A Velocity Meter for Quantifying Advection Velocity Vectors in Large Water Bodies [PDF]
Sensors, 2020 A velocity meter was designed and built in order to meet market needs for an affordable instrument that measures the range of velocity magnitudes and direction experienced in medium- to large-sized water bodies. The velocity meter consists of a graduated plate with an injector protruding from the center and a camera held downward above the plate.
Farzam Allafchi +6 more
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Vector Aeroacoustics for Uniform Mean Flow: Acoustic Velocity and Vortical Velocity [PDF]
AIAA Journal, 2018 Acoustic and vortical disturbances in uniform mean flow bounded with solid surfaces are investigated in this paper.
Mao, Yijun +3 more
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Velocities, Stresses and Vector Bundle Valued Chains [PDF]
Journal of Elasticity, 2011 A mathematical framework for the fundamental objects of continuum mechanics is presented. In the geometric setting of general differentiable manifolds, velocity fields over bodies, modeled as sections of a vector bundle W, are generalized using notions of homological integration theory such as flat chains and cochains.
Segev, Reuven, Falach, Lior
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New Technology – Demonstration of a Vector Velocity Technique [PDF]
Ultraschall in der Medizin - European Journal of Ultrasound, 2011 With conventional Doppler ultrasound it is not possible to estimate direction and velocity of blood flow, when the angle of insonation exceeds 60-70°. Transverse oscillation is an angle independent vector velocity technique which is now implemented on a conventional ultrasound scanner.
Møller Hansen, Peter +4 more
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Evidence for alignment of the rotation and velocity vectors in pulsars [PDF]
Monthly Notices of the Royal Astronomical Society, 2005 MNRAS, In ...
Johnston, Simon +5 more
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The advantages of velocity vector referencing in proportional navigation [PDF]
IEEE Symposium on Position Location and Navigation. A Decade of Excellence in the Navigation Sciences, 2002 Two broad classes of proportional navigation laws are compared with regard to their implementation, analysis, and behavior. The first consists of laws such as the PPN (pure proportional navigation) laws, which are referenced relative to the pursuer velocity vector, and the second consists of line-of-sight (LOS) referenced laws such as TPN (true PN ...
Mahapatra, Pravas R, Shukla, Uday S
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The pion velocity at chiral restoration and the vector manifestation [PDF]
Nuclear Physics A, 2004 13 pages, discussions for clarifying the matching procedure are ...
Harada, Masayasu +3 more
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Estimation of Velocity Vectors in Synthetic Aperture Ultrasound Imaging [PDF]
IEEE Transactions on Medical Imaging, 2006 A method for determining both velocity magnitude and angle in a synthetic aperture ultrasound system is described. The approach uses directional beamforming along the flow direction and cross correlation to determine velocity magnitude. The angle of the flow is determined from the maximum normalized correlation calculated as a function of angle.
Jørgen Arendt Jensen, Niels Oddershede
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Vectors as applied to Problems in Velocity [PDF]
Mathematical Notes, 1914 A velocity is a vector quantity, for it possesses magnitude and direction. It is, of course, necessary to make clear in every case what given point (moving or not) is considered as fixed for the time being, to which the vclocity of the moving point (so-called, though it may only be relatively moving) is referred.
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