A discrete Hartley transform (DHT) is a Fourier-related transform of discrete, periodic data similar to the discrete Fourier transform (DFT), with analogous...
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discrete version of the transform, the discrete Hartley transform (DHT), was introduced by Ronald N. Bracewell in 1983. The two-dimensional Hartley transform...
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Fourier transform (FFT) is an algorithm that computes the discrete Fourier transform (DFT) of a sequence, or its inverse (IDFT). A Fourier transform converts...
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In mathematics, the discrete Fourier transform (DFT) converts a finite sequence of equally-spaced samples of a function into a same-length sequence of...
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Discrete Hartley transform Discrete sine transform Discrete wavelet transform Hadamard transform (or, Walsh–Hadamard transform) Fast wavelet transform Hankel...
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variables. Z-transform, a generalization of the DTFT to the entire complex plane Modified discrete cosine transform (MDCT) Discrete Hartley transform (DHT) Also...
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Lyon Hartley (November 30, 1888 – May 1, 1970) was an American electronics researcher. He invented the Hartley oscillator and the Hartley transform, and...
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to any other transform (of prime order) with a similar property, such as a number-theoretic transform or the discrete Hartley transform. The algorithm...
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List of Fourier analysis topics (redirect from Fourier series and transforms)
function Distribution Oscillatory integral Laplace transform Discrete Hartley transform List of transforms Dirichlet kernel Fejér kernel Convolution theorem...
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transform (FFT). However, there exist other orthogonal transforms that can be used. For example, OFDM systems based on the discrete Hartley transform...
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Non-orthogonal frequency-division multiplexing (section Demodulation after discrete Hartley transform)
1st method of optimal processing for N-OFDM signals after Fast Fourier transform (FFT). In this regard need to say that W. Kozek and A. F. Molisch wrote...
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up DHT in Wiktionary, the free dictionary. DHT may refer to: Discrete Hartley transform, in mathematics Distributed hash table, lookup service in computing...
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original Fourier transform on R or Rn, notably includes the discrete-time Fourier transform (DTFT, group = Z), the discrete Fourier transform (DFT, group =...
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terms which are summed. Discrete cosine transform Discrete sine transform Hartley transform — a composite sine & cosine transform that does not require...
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for the Laplace transform, the two-sided Laplace transform and, when suitably modified, for the Mellin transform and Hartley transform (see Mellin inversion...
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Fourier transform that is zero outside of a finite region of frequencies. Intuitively we expect that when one reduces a continuous function to a discrete sequence...
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Massey the following year. In 1972, Nasir Ahmed proposes the discrete cosine transform (DCT). It later becomes the most widely used lossy compression...
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White noise (section Discrete-time white noise)
vector. In particular, under most types of discrete Fourier transform, such as FFT and Hartley, the transform W of w will be a Gaussian white noise vector...
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improvement of Reed–Solomon codes 1972 – Nasir Ahmed proposes the discrete cosine transform (DCT), which he develops with T. Natarajan and K. R. Rao in 1973;...
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Logit (redirect from Logistic transform)
value: base 2 corresponds to a shannon, base e to a nat, and base 10 to a hartley; these units are particularly used in information-theoretic interpretations...
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fundamental matrix was published in 1992 by both Olivier Faugeras and Richard Hartley. Although H. Christopher Longuet-Higgins' essential matrix satisfies a...
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Single-sideband modulation (section Hartley modulator)
standard AM. An alternate method of generation known as a Hartley modulator, named after R. V. L. Hartley, uses phasing to suppress the unwanted sideband. To...
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fast Fourier algorithm, especially for images, is treated in The Hartley Transform (1986), in U.S. Patent 4,646,256 (1987, now in the public domain)...
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In information theory, the limiting density of discrete points is an adjustment to the formula of Claude Shannon for differential entropy. It was formulated...
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List of theorems (section Convex and discrete geometry)
theorem (discrete geometry) Descartes's theorem on total angular defect (polyhedra) Erdős–Anning theorem (discrete geometry) Erdős–Nagy theorem (discrete geometry)...
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data compression technique for media bandwidth reduction is the discrete cosine transform (DCT), which was first proposed by Nasir Ahmed in the early 1970s...
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analogue of discrete entropy, but it is not.: 181–218 The actual continuous version of discrete entropy is the limiting density of discrete points (LDDP)...
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team from Ferranti based in Bracknell working with David Barron, David Hartley, Roger Needham and Barry Landy of Cambridge University Maths Lab developed...
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Fourier optics (redirect from Optical Fourier transform)
diffraction Geometrical optics Hilbert space Optical correlator Optical Hartley transform Wave field synthesis The equation 2.3 below suggests that u in this...
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Discrete choice Discrete choice analysis Discrete distribution – redirects to section of Probability distribution Discrete frequency domain Discrete phase-type...
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