• the Z-transform converts a discrete-time signal, which is a sequence of real or complex numbers, into a complex valued frequency-domain (the z-domain...
    43 KB (5,652 words) - 02:24, 18 April 2025
  • The chirp Z-transform (CZT) is a generalization of the discrete Fourier transform (DFT). While the DFT samples the Z plane at uniformly-spaced points along...
    11 KB (1,570 words) - 16:02, 23 April 2025
  • the Laplace transform evolved naturally as a result. Laplace's use of generating functions was similar to what is now known as the z-transform, and he gave...
    75 KB (9,453 words) - 21:26, 7 May 2025
  • advanced z-transform is an extension of the z-transform, to incorporate ideal delays that are not multiples of the sampling time. The advanced z-transform is...
    2 KB (598 words) - 03:49, 1 September 2024
  • in the s-plane to the unit circle, | z | = 1 {\displaystyle |z|=1} , in the z-plane. Other bilinear transforms can be used for warping the frequency...
    19 KB (4,014 words) - 17:01, 17 April 2025
  • The 2D Z-transform, similar to the Z-transform, is used in multidimensional signal processing to relate a two-dimensional discrete-time signal to the...
    11 KB (3,249 words) - 05:44, 15 February 2025
  • Thumbnail for Fourier transform
    Fourier transform on R or Rn, notably includes the discrete-time Fourier transform (DTFT, group = Z), the discrete Fourier transform (DFT, group = Z mod N)...
    177 KB (21,314 words) - 09:59, 16 May 2025
  • Thumbnail for Short-time Fourier transform
    The short-time Fourier transform (STFT) is a Fourier-related transform used to determine the sinusoidal frequency and phase content of local sections...
    22 KB (4,055 words) - 09:25, 3 March 2025
  • Thumbnail for Radon transform
    and the Radon transform can be expressed in these coordinates by: R f ( α , s ) = ∫ − ∞ ∞ f ( x ( z ) , y ( z ) ) d z = ∫ − ∞ ∞ f ( ( z sin ⁡ α + s cos...
    24 KB (3,500 words) - 05:42, 17 April 2025
  • Thumbnail for Discrete Fourier transform
    In mathematics, the discrete Fourier transform (DFT) converts a finite sequence of equally-spaced samples of a function into a same-length sequence of...
    76 KB (12,333 words) - 05:19, 3 May 2025
  • Thumbnail for Matched Z-transform method
    The matched Z-transform method, also called the pole–zero mapping or pole–zero matching method, and abbreviated MPZ or MZT, is a technique for converting...
    7 KB (741 words) - 02:09, 3 December 2021
  • multidimensional Z transform is given by F ( z 1 , z 2 , … , z m ) = ∑ n 1 = − ∞ ∞ ⋯ ∑ n m = − ∞ ∞ f ( n 1 , n 2 , … , n m ) z 1 − n 1 z 2 − n 2 … z m − n m {\displaystyle...
    24 KB (4,602 words) - 04:59, 25 March 2025
  • Z[u(n)]={\dfrac {z}{z-1}}} Converted output after z-transform Y ( z ) = T ( z ) U ( z ) = T ( z ) z z − 1 {\displaystyle Y(z)=T(z)U(z)=T(z){\dfrac {z}{z-1}}} Perform...
    15 KB (2,846 words) - 16:28, 18 February 2025
  • wavelet transform; in practice by any suitable sampling procedure under the condition that the signal is highly oversampled, so P J [ f ] ( x ) := ∑ n ∈ Z s...
    7 KB (1,314 words) - 07:52, 6 April 2025
  • Thumbnail for Fisher transformation
    behavior of this transform has been extensively studied since Fisher introduced it in 1915. Fisher himself found the exact distribution of z for data from...
    12 KB (1,558 words) - 03:31, 6 January 2025
  • expressed as a Z-transform. The NUDFT-I of a sequence x [ n ] {\displaystyle x[n]} of length N {\displaystyle N} is X ( z k ) = X ( z ) | z = z k = ∑ n = 0...
    14 KB (2,447 words) - 14:28, 15 March 2025
  • bilateral Z-transform.  I.e.: S 2 π ( ω ) = S z ( z ) | z = e i ω = S z ( e i ω ) , {\displaystyle S_{2\pi }(\omega )=\left.S_{z}(z)\,\right|_{z=e^{i\omega...
    40 KB (5,076 words) - 03:43, 27 February 2025
  • in terms of the Z-transform of the filter impulse response: H ^ ( z )   ≜ ∑ n = − ∞ ∞ h [ n ] ⋅ z − n . {\displaystyle {\widehat {H}}(z)\ \triangleq \sum...
    18 KB (3,089 words) - 12:26, 18 August 2024
  • transform is equal to a modified Z-transform: Z ′ { x [ z ] } = Z { x [ z + 1 ] } z + 1 {\displaystyle {\mathcal {Z}}'\{x[z]\}={\frac {{\mathcal {Z}}\{x[z+1]\}}{z+1}}}...
    13 KB (1,756 words) - 02:07, 12 November 2024
  • Transforms between a discrete domain and a continuous domain are not discrete transforms. For example, the discrete-time Fourier transform and the Z-transform...
    2 KB (219 words) - 16:15, 19 October 2023
  • Thumbnail for Hadamard transform
    Hadamard transform (also known as the Walsh–Hadamard transform, Hadamard–Rademacher–Walsh transform, Walsh transform, or Walsh–Fourier transform) is an...
    32 KB (4,739 words) - 00:09, 16 May 2025
  • ⁡ ( z ) = 2 T [ z − 1 z + 1 + 1 3 ( z − 1 z + 1 ) 3 + 1 5 ( z − 1 z + 1 ) 5 + 1 7 ( z − 1 z + 1 ) 7 + ⋯ ] ≈ 2 T z − 1 z + 1 = 2 T 1 − z − 1 1 + z − 1...
    11 KB (1,444 words) - 12:36, 26 November 2024
  • variables. Z-transform, a generalization of the DTFT to the entire complex plane Modified discrete cosine transform (MDCT) Discrete Hartley transform (DHT)...
    7 KB (1,001 words) - 21:41, 28 February 2025
  • Thumbnail for Linear time-invariant system
    The Z transform H ( z ) = Z { h [ n ] } = ∑ n = − ∞ ∞ h [ n ] z − n {\displaystyle H(z)={\mathcal {Z}}\{h[n]\}=\sum _{n=-\infty }^{\infty }h[n]z^{-n}}...
    36 KB (5,855 words) - 23:05, 1 September 2024
  • Thumbnail for Joukowsky transform
    published it in 1910. The transform is z = ζ + 1 ζ , {\displaystyle z=\zeta +{\frac {1}{\zeta }},} where z = x + i y {\displaystyle z=x+iy} is a complex variable...
    11 KB (1,634 words) - 14:58, 11 October 2023
  • for "fractional Fourier transform" was introduced by Bailey and Swartztrauber as essentially another name for a z-transform, and in particular for the...
    27 KB (3,953 words) - 15:43, 20 April 2025
  • {=}0} ) Discrete-time systems use the Z-transform and are plotted in the z-plane: z = A e j ϕ {\displaystyle z=Ae^{j\phi }} Real frequency components...
    8 KB (1,288 words) - 02:19, 8 May 2025
  • In combinatorics, the binomial transform is a sequence transformation (i.e., a transform of a sequence) that computes its forward differences. It is closely...
    14 KB (2,438 words) - 15:02, 19 April 2025
  • Thumbnail for Frequency domain
    systems. Fourier transform – aperiodic signals, transients. Laplace transform – electronic circuits and control systems. Z transform – discrete-time signals...
    10 KB (1,195 words) - 03:16, 1 February 2025
  • then the Z-transform is   X ( z ) = 1 1 − 1.5 z − 1 {\displaystyle \ X(z)={\frac {1}{1-1.5z^{-1}}}} which has a pole at z = 1.5 {\displaystyle z=1.5} and...
    45 KB (6,774 words) - 01:00, 17 March 2025