Temat: DFT algorithm - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Frequency synchronization error correction by using DFT in sinusoidal voltage measurements
Autorzy:: Krajewski, M.
Powiązania:: https://bibliotekanauki.pl/articles/114200.pdf
Data publikacji:: 2016
Wydawca:: Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:: correction of synchronization error
accurate RMS voltage measurement
DFT algorithm
Opis:: The paper presents a method of correcting a frequency synchronization error in the sinusoidal voltage measurement. Correction is performed by changing a frequency of the measured signal on the basis of the respectively determined synchronization error by using DFT. Carried out simulation experiments indicate that the correction can theoretically improve the accuracy of measurement of the RMS voltage to the level below 1 ppm. The results of measurements taken by a highly accurate voltmeter Agilent 3458 confirm the conclusions of the simulation, that it is possible to repeatedly reduce the frequency synchronization error by applying the developed correction method in the voltage measurement.
Źródło:: Measurement Automation Monitoring; 2016, 62, 7; 218-220
2450-2855
Pojawia się w:: Measurement Automation Monitoring
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Fornasini-Marchesini 2-D State Space Models: Transfer Function Computation Via the Dft
Autorzy:: Antoniou, G.
Emmons, K.
Powiązania:: https://bibliotekanauki.pl/articles/911185.pdf
Data publikacji:: 2000
Wydawca:: Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:: teoria systemów
transformata Fouriera
two dimensions system theory
Fourier transform
DFT algorithm
Fornasini-Marchesini's model
Opis:: A new algorithm is presented for the computation of the coefficients of the determinantal polynomial and the coefficients of the adjoint polynomial matrix of a given two-dimensional (2-D) state space model of Fornasini-Marchesini type. The algorithm has been implemented in Matlab and uses the discrete Fourier transform (DFT). The simplicity and efficiency of the technique are illustrated by two examples.
Źródło:: International Journal of Applied Mathematics and Computer Science; 2000, 10, 2; 321-331
1641-876X
2083-8492
Pojawia się w:: International Journal of Applied Mathematics and Computer Science
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: A highly accurate DFT-based parameter estimator for complex exponentials
Autorzy:: Tsui, J.
Reisenfeld, S.
Powiązania:: https://bibliotekanauki.pl/articles/309144.pdf
Data publikacji:: 2006
Wydawca:: Instytut Łączności - Państwowy Instytut Badawczy
Tematy:: frequency estimation
phase estimation
amplitude estimation
DFT-based parameter estimation
spectral estimation
digital signal processing algorithm
complex exponential parameter estimation
Opis:: A highly accurate DFT-based complex exponential parameter estimation algorithm is presented in this paper. It will be shown that for large number of samples and high signal to noise ratio (SNR), the phase estimation error variance performance is only 0.0475 dB above the Cramer-Rao lower bound (CRLB) for phase estimation with unknown frequency and phase. The amplitude estimation error variance performance was found to lay on the CRLB for amplitude estimation. Exact phase and amplitude estimation can be achieved in the noiseless case with this algorithm. The algorithm has low implementation computational complexity and is suitable for numerous real time digital signal processing applications.
Źródło:: Journal of Telecommunications and Information Technology; 2006, 1; 76-82
1509-4553
1899-8852
Pojawia się w:: Journal of Telecommunications and Information Technology
Dostawca treści:: Biblioteka Nauki

Artykuł

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