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Year: 2011, Volume: 11, Number: 1
... signals Where: Fw is transfer function of the feedback speed are error and change of error, and the output signal is change control loop, ‰c is critical frequency. The main idea of SO is of control signal. Each signal is represented via eight to design a low-pass filter that would preserve the original linguistic variables ...
Year: 2011, Volume: 11, Number: 1
... ƒ ƒ coordinate system € x, y, z € and the local coordinate system ƒ ƒ cos ƒ ƒ where is the wavelength corresponding to the frequency € xi €1, yi €1, zi €1 € of the € i € 1€ th generating line is: of signal. ƒxƒ ƒ xi ƒ The ...
Year: 2011, Volume: 11, Number: 1
... propagation models. In LTE-Advanced [6-7]. At its core, 802.16m uses time-tested these networks the signal to noise ratio of received signal technologies such as Orthogonal Frequency Division changes dynamically, which in turn switches to more or less Multiplexing (OFDM), Orthogonal Frequency Division robust modulation and coding scheme altering both the rate ...
Year: 2011, Volume: 11, Number: 1
... is simulations at the system level. Bode characteristics of the presented. The cut-off frequency can be tuned in (10 €“ 42)MHz ideal 5th order differential ... > 1 G m is fulfilled for the Gm cells are added to shunt the high-frequency components resulting in the test scheme illustrated in Fig. 5, then this ...
485. The Study of the Electromagnetic Shielding Properties of a Textile Material with Amorphous Microwire
Year: 2011, Volume: 11, Number: 1
... ,- Carbon-based plastic composite materials; reflection and polarization;- determination of the frequency range within which these- Ferrite and magnetic powder materials [4 ]; ... the measurement of the shielding factor within 21 1 17 12 75-150 15-20 0.2-0.5 the radiofrequency and microwave ranges. 18 Advances in Electrical and Computer Engineering Volume 11, ...
Year: 2011, Volume: 11, Number: 1
... and Computer Engineering Volume 11, Number 1, 2011 choosing of the distribution type depends on the nature of the optimized problem. For example, when optimizing the frequency filters, all mentioned above is valid. More advanced algorithms can determine the parameters of the equation (4) automatically according to the previous steps' results ...
Year: 2010, Volume: 10, Number: 4
... storage power, and Where u ‚d is 1 € u d. After simple calculation demonstrated power calculated based on subtraction between fuel cell this system is controllable. Frequency response method for rated power and load power, respectively. design of PI linear controllers has been used [40]. The controller of boost converter of ...
Year: 2010, Volume: 10, Issue: 4
... Xu, Direct Power Control of DFIG with Constant done to protect it. Switching Frequency and Improved Transient Performance, IEEE In the literature, authors have proposed connecting ... DFIG sliding control and filtering framework analysis. However, it has been shown that high-frequency currents are injected on the rotor and stator sides of the DFIG. This ...
Year: 2010, Volume: 10, Issue: 4
... the measurement through integration realized in Simulink is given in Fig. 2. Fig. 4 Voltage after the integrator From this simulation, there ensues that for a frequency of the impulses of one impulse per hour in the case of the measurements upon a small concentration of Radon, the method through integration cannot be applied. ...
Year: 2010, Volume: 10, Issue: 4
... topology of the is obviously that the last must be as small as possible in inverter is chosen in accordance with the commutation table order to achieve a convenient switching frequency. [7]. The requested action is delivered by two hysteresis In simulation it is possible to choose a fixed step size as discrete controllers which give ...
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