time-varying transform

time-varying transform
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Англо-русский словарь по компьютерной безопасности. . 2011.

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  • Time series — Time series: random data plus trend, with best fit line and different smoothings In statistics, signal processing, econometrics and mathematical finance, a time series is a sequence of data points, measured typically at successive times spaced at …   Wikipedia

  • Time-frequency analysis — is a body of techniques for characterizing and manipulating signals whose component frequencies vary in time, such as transient signals.Whereas the technique of the Fourier transform can be used to obtain the frequency spectrum of a signal whose… …   Wikipedia

  • Time-frequency representation — A time frequency representation (TFR) is a view of a signal (taken to be a function of time) represented over both time and frequency. Time frequency analysis means analysis of a TFR. TFRs are often complex valued fields over time and frequency,… …   Wikipedia

  • Time-variant system — A time variant system is a system, that is not time invariant(TIV). Overview There are many well developed techniques for dealing with the response of linear time invariant systems, such as Laplace and Fourier transforms. However, these… …   Wikipedia

  • Chirplet transform — Comparison of wave, wavelet, chirp, and chirplet In signal processing, the chirplet transform is an inner product of an input signal with a family of analysis primitives called chirplets. Contents …   Wikipedia

  • Constant Q transform — In mathematics and signal processing, the Constant Q Transform transforms a data series to the frequency domain, and is related to the Fourier Transform [1]. The transform can be thought of as a series of logarithmically spaced filters, with the… …   Wikipedia

  • Continuous-time quantum walk — A Continuous time quantum walk (CTQW) is a walk on a given connected graph that is dictated by a time varying unitary matrix that relies on the Hamiltonian of the quantum system and the adjacency matrix. CTQW belongs to what is known as Quantum… …   Wikipedia

  • Fourier transform spectroscopy — is a measurement technique whereby spectra are collected based on measurements of the temporal coherence of a radiative source, using time domain measurements of the electromagnetic radiation or other type of radiation.It can be applied to a… …   Wikipedia

  • Scale-invariant feature transform — Feature detection Output of a typical corner detection algorithm …   Wikipedia

  • Power transform — In statistics, the power transform is a family of transformations that map data from one space to another using power functions. This is a useful data (pre)processing technique used to reduce data variation, make the data more normal distribution …   Wikipedia

  • Terahertz time-domain spectroscopy — In physics, terahertz time domain spectroscopy (THz TDS) is a spectroscopic technique where a special generation and detection scheme is used to probe material properties with short pulses of terahertz radiation. The generation and detection… …   Wikipedia


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