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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 ( ...
Year: 2012, Volume: 12, Number: 3
... of the project "Voiced Sounds of Romanian In [20], the fundamental frequency F0, energy, speaking Language". The database was validated by human ... and min of F0, variance of F0, intensity distributions, and speech, Mel-Frequency Cepstrum Coefficients (MFCCs) patterns for F0 rising segments [3]. ...
Year: 2012, Volume: 12, Number: 3
... Source UWB_Modulator Gaussian pulse with a form factor ƒ=0.09 ns, leading to an Gauss_5th IEEE 802.15.3a effective duration of T p =0.6 ns and a center frequency of 4 Channel Model GHz [14] -[ 15]. Tx Error Rate AWGN The Simulink model is run at a sample time of 0.25 ns ...
Year: 2012, Volume: 12, Number: 3
... impedance value is about 118 kΩ at low frequencies and its value decreases as the frequency Therefore, the circuit simulates an inductor in series with increases. Its value ... no. 6, pp. 422 €“ 423, 1995. in time and frequency-domain. Time-domain functionality [3] P. R. Gray, P. ...
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