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Search results for: frequency
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Year: 2012, Volume: 12, Number: 4
... would result in more accurate identification 0 of stable vertices and consequently significant reduction of 0 5000 10000 15000 20000 deletion probability. Ordinal number of vertex Figure 10. Frequency of the vertex selection (Venus de Milo). APPENDIX A As we can see, only two same vertices are selected by 3 In this part of ...
Year: 2012, Volume: 12, Number: 4
... modulation schemes is that it is independent on communication has been taking place. Usually, the radio the lightning color as well as the number of LEDs at the frequency (RF) is used for wireless data transmission, but it transmitter and photo detectors (PDs) at the receiver. In has its bandwidth (BW ...
Year: 2012, Volume: 12, Number: 4
... of the iSd, iSq stator current vector components in [d, q] system PMSM with constant rotor excitation is determined by the iS_ref reference stator current stator frequency and the number of poles. For variable speed Km gain of the voltage inverter drive, some type of inverter is necessary to provide voltage Jtot total moment ...
Year: 2012, Volume: 12, Number: 3
... design approach used for the development of control a purely sinusoidal voltage at system fundamental frequency scheme is not application specific and the control is optimal [2]. ... any nonlinear dynamic system. Power can be used to improve the damping of the low-frequency system being a highly non-linear and non-stationary power oscillations resulting from different contingencies problem ...
Year: 2012, Volume: 12, Number: 3
... spectral zero. The term DBBLS is an angular carrier frequency of the density consisting of two separate components DBBLS ... Synchronization in Digital DD8 Communications.Volume I. Phase-, Frequency-Locked Loops and DD9 Amplitude Control." John Wiley ... Sons, Inc. 1990. [8] D.M. Akos, A. Ene, J. Thor ...
Year: 2012, Volume: 12, Number: 3
... a voiced sound, the excitation being in this case a sequence of pulses of where H is a Hadamard matrix of order n. The n x n fixed frequency) and will be placed in the high quefrency Hadamard matrix is build out of Walsh functions, every row region. in the matrix representing a Walsh function ...
Year: 2012, Volume: 12, Number: 3
... torque reduction methods [12], [13] etc. integration time step should be correlated with the Despite its attractiveness, PMSM has a main drawback commutation frequency [24]. represented by the presence of the Cogging Torque (CT) The mathematical model of the PMSM proposed in this that appears due to the ...
Year: 2012, Volume: 12, Number: 3
... without using dt root locus analysis and Bode plots [18]. The parameters of speed controller are given in Eq.10. where e is the electrical rotor frequency, R s is the stator winding resistance. d and q are linkage fluxes of d-axis J s J s2 and q-axis, respectively. The ...
Year: 2012, Volume: 12, Number: 3
... the integrator based stator flux control algorithms with known stator frequency (e.g., a field estimates. By ... . 45, pp. 824-831, 1998. with low-frequency signal injection allowing sensorless zero- [2] ... . Tsuji, and S. Chen, "A sensorless vector control system for frequency operation of induction motors ...
Year: 2012, Volume: 12, Number: 3
... € ƒfitness i €1 qi commonly found in real-world problems [13]. q € 25, k € subproblems, f T ‚ 0.99 Three real-world problems: Frequency Modulation Sound q (FMS) problem, GPS attitude determination problem [12],[23] -[ 24] and System of Linear Equations ( ...
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