engineering, the sinc function (/ˈsɪŋk/ SINK), denoted by sinc(x), is defined as either sinc ( x ) = sin x x . {\displaystyle \operatorname {sinc} (x)={\frac...
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In signal processing, a sinc filter can refer to either a sinc-in-time filter whose impulse response is a sinc function and whose frequency response is...
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Applications to Radar" as an ideal cutout operator, together with the sinc function as an ideal interpolation operator, and their counter operations which...
10 KB (1,625 words) - 21:11, 28 May 2025
Ringing artifacts (section sinc filter)
time domain, the cause of this type of ringing is the ripples in the sinc function, which is the impulse response (time domain representation) of a perfect...
26 KB (3,411 words) - 05:17, 22 July 2023
copy of the Lanczos kernel, which is a sinc function windowed by the central lobe of a second, longer, sinc function. The sum of these translated and scaled...
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Whittaker–Shannon interpolation formula (redirect from Sinc interpolation)
Whittaker–Shannon interpolation formula or sinc interpolation is a method to construct a continuous-time bandlimited function from a sequence of real numbers. The...
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sinc function scaled to the sample value, x ( n T ) . {\displaystyle x(nT).} Subsequently, the sinc functions are summed into a continuous function....
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}{N}}\right)\right)} If we introduce the normalized sinc function sinc ( x ) = sin ( π x ) π x {\textstyle \operatorname {sinc} (x)={\frac {\sin(\pi x)}{\pi x}}} for...
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{\displaystyle F(s)} . The following integral gives a representation the sinc function: sin x x = 1 π ∫ 0 ∞ cos ( x t ) d t {\displaystyle {\frac {\sin...
47 KB (9,989 words) - 20:48, 28 July 2025
\right)\right],} in terms of the normalized sinc function: sinc x = sin π x π x . {\displaystyle \operatorname {sinc} x={\frac {\sin \pi x}{\pi x}}.} a k...
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Removable singularity (category Analytic functions)
the resulting function is regular in a neighbourhood of that point. For instance, the (unnormalized) sinc function, as defined by sinc ( z ) = sin z...
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of periodic functions Polar sine – a generalization to vertex angles Sinc function Klein, Felix (1924) [1902]. "Die goniometrischen Funktionen". Elementarmathematik...
77 KB (10,653 words) - 00:44, 29 July 2025
product of two sinc functions vs. an Airy function, respectively. Conventions: w 0 ( x ) {\displaystyle w_{0}(x)} is a zero-phase function (symmetrical...
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Maximum and minimum (redirect from Extrema of a function)
Paul. "Minimization and maximization refresher". "The Unnormalized Sinc Function Archived 2017-02-15 at the Wayback Machine", University of Sydney For...
17 KB (2,094 words) - 05:37, 23 March 2025
Arg max (category Inverse functions)
if and only if x − 5 = 0. {\displaystyle x-5=0.} "The Unnormalized Sinc Function Archived 2017-02-15 at the Wayback Machine", University of Sydney Rockafellar...
9 KB (1,500 words) - 07:15, 27 May 2024
Shannon wavelet (redirect from Sinc wavelet)
wavelet. First, we define the scaling function to be the sinc function. ϕ (Sha) ( t ) := sin π t π t = sinc ( t ) . {\displaystyle \phi ^{\text{(Sha)}}(t):={\frac...
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filter or interpolation functions, as though the data were a two dimensional function of continuous x and y. The sinc function of the radius has too long...
24 KB (3,270 words) - 00:06, 28 April 2025
Dirichlet integral (category Special functions)
Gustav Lejeune Dirichlet, one of which is the improper integral of the sinc function over the positive real number line. ∫ 0 ∞ sin x x d x = π 2 . {\displaystyle...
15 KB (2,929 words) - 21:29, 17 June 2025
zeroth spherical Bessel function j0(x) is also known as the (unnormalized) sinc function. The first few spherical Bessel functions are: j 0 ( x ) = sin ...
77 KB (12,329 words) - 12:54, 29 July 2025
step function by the integral up to a certain frequency, which yields the sine integral. This can be interpreted as convolution with the sinc function; in...
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origin. Other approximations to the identity of this kind include the sinc function (used widely in electronics and telecommunications) η ε ( x ) = 1 π...
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translates of sinc function and Cardinal function C(f,h) which is an expansion of f defined by C ( f , h ) ( x ) = ∑ k = − ∞ ∞ f ( k h ) sinc ( x h − k )...
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Sine and cosine (redirect from Sine function)
generalization to vertex angles Proofs of trigonometric identities Sinc function Sine and cosine transforms Sine integral Sine quadrant Sine wave Sine–Gordon...
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signal by the rectangular function in the frequency domain or, equivalently, convolution with its impulse response, a sinc function, in the time domain. However...
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(-z)={\frac {\pi z}{\sin(\pi z)}}={\frac {1}{\operatorname {sinc} (z)}}} using the normalized sinc function; while the multiplication theorem becomes: Π ( z m...
90 KB (13,545 words) - 04:27, 29 July 2025
A sombrero function (sometimes called besinc function or jinc function) is the 2-dimensional polar coordinate analog of the sinc function, and is so-called...
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{a}^{2}\ \mathrm {sinc} ^{2}(a\cdot f)={a}\ \mathrm {sinc} ^{2}(a\cdot f).\end{aligned}}} Källén function, also known as triangle function Tent map Triangular...
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)}=\operatorname {sinc} (\xi )} is sometimes used to express that the Fourier transform of a rectangular function is a sinc function, or F ( f ( x + x...
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x(t)} can be written using the Sinc function, using the definition sinc x = sin π x π x {\displaystyle \operatorname {sinc} x={\frac {\sin \pi x}{\pi...
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Bessel–Clifford function Kelvin functions Legendre function: From the theory of spherical harmonics. Scorer's function Sinc function Hermite polynomials...
10 KB (1,065 words) - 21:42, 29 July 2025