field transformation
Near-field measurement of continuously modulated fields employing the time-harmonic near- to far-field transformation
... tion (NFFFT) (Yaghjian, 1986), where advanced algorithms such as the fast irregular antenna field transformation algo- rithm (FIAFTA) offer various source representations and ad- ditional diagnostic ...
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Spherical Near Field Far Field Transformation for Quasi Planar Antennas from Irregularly Spaced Data
... FF) transformation with spherical scanning for quasi-planar antennas from ir- regularly spaced data is developed in this ...FF transformation with spherical scanning are efficiently evaluated by using an ...
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NUFFT-Accelerated Plane-Polar (Also Phaseless) Near-Field/Far-Field Transformation
... NFFF transformation is to perform an interpolation stage prior to the FFT [3, 11, 12], instead of proceeding by a more computationally demanding matrix-vector multiplication ...
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Near-Field-Far-Field Transformation Technique with Helicoidal Scanning for Elongated Antennas
... It is worthy to note that the OSI formula (5) can be still used to reconstruct the reduced voltage at any point on the helix and, as a consequence, can be applied to recover the intermediate samples, whereas the NF data ...
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Fast near-field far-field transformation for phaseless and irregular antenna measurement data
... Conventional field transformation approaches are not able to process irregularly sampled measurement data without phase ...antenna field transformation algorithm ...
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A comparison of software- and hardware-gating techniques applied to near-field antenna measurements
... As the near-field to far-field transformation algorithm is sensitive to amplitude and phase the near-field data should be acquired as accurate as possible. Otherwise small NF errors can lead ...
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Evaluation of the Far Field Radiated by Long Antennas Directly from Data Acquired through a Fast Helicoidal Scanning
... near-field-far-field transformation with helicoidal scanning for electrically long antennas is proposed in this ...a transformation, which allows the evaluation of the antenna far field ...
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Investigation of steady incompressible flows in the vicinity of an airfoil
... 1 Page Discretization of a continuum by a 2a 2b Field transformation: Physical Field transformation: Transformed 3 Converged 4 5 contracted coordinate coordinate uncontracted NACA4412 co[r] ...
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Application of the Cosine Window Function with the Parameters Optimized by Genetic Algorithm in Bistatic Planar Near-Field Scattering Measurements
... far-field transformation in bistatic planar near-field scattering measurements, the far-field scattering characteristics of the target can be evaluated from the scattered near field by ...
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Performance Evaluation of Image Fusion Using Fractional Transforms
... Fourier transformation on two source image A and B to obtain the fractional field transformation result; then take wavelet transform (WT) to decompose to different frequency band and the direction; ...
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New Lorentz Field Dependent Lorentz Transformation Due To Photon Direction Change
... Lorentz transformation accounting for the effect of the field on space time and mass was ...This transformation is based on the effect of the field on the photon trajectory by preserving the ...
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Effect of Magnetic Field on γ α Transformation in Fe Rh Alloys
... (martensitic) transformation and diffusional ...the transformation temperature when there is a large difference in magnetization between the high- and low- temperature ...
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Earth's Electromagnetic Forces and Their Participation in the Creation of Tornadoes
... this difference in the direction of rotation of the tornado is easy to explain using electromagnetic forces, the nature of which has long been established and is well understood [7]. Thus, using only mechanical ideas, ...
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Transformation of Context: the Field of Rushes in Old and Middle Kingdom Mortuary Literature
... In final summary, one has met with a series of transformations in context: although about as many texts with the term occur in each period, the most prominent context in the Old Kingdom,[r] ...
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Effects of Magnetic Field and Deformation on Isothermal Martensitic Transformation in SUS304 and SUS304L Steels
... on transformation behavior In order to investigate the martensitic transformation behavior and magnetic properties, we have measured temper- ature dependence of magnetic susceptibility by applying a low ...
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Magnetic Field Induced Martensitic Transformation of Fe Co Particles in a Cu Matrix
... martensitic transformation by applying the magnetic ...martensitic transformation in the particles, the aged specimens were cooled slowly (cooling rate: ...of transformation, it is essential to ...
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The Appleization of finance: Charting incumbent finance’s embrace of FinTech
... The epigraph from the World Economic Forum suggests that FinTech is more than just the latest technology-driven fad in finance. The inroads of tech firms large and small has raised concerns about the viability of banks’ ...
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Volume 2: Petri Nets and Graph Transformations
... As mentioned above, the theory of rewriting over categories of Petri nets falls into the realm of high-level replacement systems, which is an extension of graph transformation systems to general categories, the ...
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Factors of the development of international e commerce under the conditions of globalization
... The current legislation in the state “Fundamentals of Global E-Commerce” regulates the following aspects of relations in the field of electronic commerce: 1 the transformation of the glo[r] ...
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The Use of Conditional Probability Integral Transformation Method for Testing Accelerated Failure Time Models
... The simulation study is conducted under the same experiment and procedures as for the exponential distribution, but the values of n j , j 1,..., 4, are different. Since all the log- failure times occurring at the same ...
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