- sinusoids
- adj. resembling a sinus, similar to a sinus n. sine curve, curve that describes the function y = a sin x (Mathematics)
English contemporary dictionary. 2014.
sinusoids
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Least-squares spectral analysis — (LSSA) is a method of estimating a frequency spectrum, based on a least squares fit of sinusoids to data samples, similar to Fourier analysis. [cite book | title = Variable Stars As Essential Astrophysical Tools | author = Cafer Ibanoglu |… … Wikipedia
Harmonic and Individual Lines and Noise — (HILN) is a parametric codec for audio. The basic premise of the encoder is that most audio, and particularly speech, can be synthesized from only sinusoids and noise. The encoder describes individual sinusoids with amplitude and frequency,… … Wikipedia
Negative frequency — The concept of negative and positive frequency can be as simple as a wheel rotating one way or the other way.[citation needed] A signed value of frequency indicates both the rate and direction of rotation.[citation needed] The rate is expressed… … Wikipedia
LTI system theory — or linear time invariant system theory is a theory in the field of electrical engineering, specifically in circuits, signal processing, and control theory, that investigates the response of a linear, time invariant system to an arbitrary input… … Wikipedia
Discrete frequency — is defined as the frequency with which the samples of a discrete sinusoid occur. Just as in its continuous time counterpart (see frequency), the discrete time signal has a time axis, conventionally denoted by n . The time variable n , however,… … Wikipedia
sinusoid — /suy neuh soyd /, n. Math. a curve described by the equation y = a sin x, the ordinate being proportional to the sine of the abscissa. [1815 25; SINUS + OID] * * * ▪ anatomy irregular tubular space for the passage of blood, taking the place … Universalium
Discrete Fourier transform — Fourier transforms Continuous Fourier transform Fourier series Discrete Fourier transform Discrete time Fourier transform Related transforms In mathematics, the discrete Fourier transform (DFT) is a specific kind of discrete transform, used in… … Wikipedia
Aliasing — This article applies to signal processing, including computer graphics. For uses in computer programming, please refer to aliasing (computing). In statistics, signal processing, computer graphics and related disciplines, aliasing refers to an… … Wikipedia
Sinusoid (blood vessel) — A sinusoid is a small blood vessel similar to a capillary but with a discontinuous endothelium.Sinusoids are found in the liver, lymphoid tissue, endocrine organs, and hematopoietic organs such as the bone marrow and the spleen. Sinusoids found… … Wikipedia
Liver sinusoid — [ thumb|300px|Sinusoid of a rat liver with fenestrated endothelial cells. Fenestrae are approx 100 nm diameter, and the sinusoidal width 5 µm. Scanning electron micrograph by Robin Fraser, University of Otago.] A liver sinusoid is a type of… … Wikipedia
