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Search results for: noise
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Year: 2009, Volume: 9, Issue: 3
... Digital Object Identifier 10.4316/AECE.2009.03010 51 Advances in Electrical and Computer Engineering Volume 9, Number 3, 2009 the algorithms based on power frequency quantities, the numerical noise appears, as it can be seen in Figure 1, curve travelling waves based algorithms can be divided into so- 1, such an algorithm becoming inadequate ...
Year: 2009, Volume: 9, Issue: 2
... than the offset. The output current, and the noise behavior of the two analyzed combination of these differential ... : 2 dvieq In Vout Gm Iout 2 di ieq Noiseless transconductor Figure 7. THD values depending on frequency ... , both doublets have an identical noise behaviour (the noises introduced by output circuits and bias sources are Figure ...
Year: 2009, Volume: 9, Issue: 2
... results are computed using Tf= 40 and M= 61 for but also on the pulse-shaping function at the frequencies N= 210 interfering symbols and a signal to noise ratio SNR (( (k m )/ T)+ Δf ), k m, where k= 0, 1, …, N -1 ...
Year: 2009, Volume: 9, Issue: 2
... any sample. The ELAN DRC II uses chemical spend more time in the DRC, reducing short-term signal resolution to eliminate plasma-based polyatomic species fluctuations. This lowers plasma noise, leading to before they reach the quadrupole mass spectrometer. This improvements in short-term precision. This excellent short- ion-molecule chemistry uses a gas to "chemically ...
Year: 2009, Volume: 9, Issue: 2
... technique [19], is used in industrial applications because of their efficiency demonstrated for pole shape optimization. In the reduced and power density. However, the noise and vibration caused basis technique, many initial pole shapes, called basis by cogging torque seriously affects the machine shapes, are combined linearly by assigning weight factors ...
Year: 2009, Volume: 9, Issue: 1
... in Figure 1. The circuit parameters of the and features of various PD measurement methods and also lumped parameter model with discrete elements are Ls= 2.5 describe the noise removal, PD location and foreign particle mH, Rs= 18 Ω, Cs= 150 pF and Cg= 850 pF. The part of identification [ ...
Year: 2009, Volume: 9, Issue: 2
... are superior in performances than spectrum analyzers, mainly because of the following characteristics:- a higher sensitivity, which allows a better discrimination of the signals from the noise inside the standardized emission limits;- a higher resistance of the input circuits to overload;- a better accuracy in amplitude and frequency. Spectrum analyzers, ...
358. Influence of Different Types of Metal Plates on a High Frequency RFID Loop Antenna: Study and Design
Year: 2009, Volume: 9, Issue: 1
... power at the resonance frequency of the tag. Even when measuring in free space, we will not be 100% successful in reading the tag. Because of noise, some failures will occur. IV. NEW ANTENNA CONCEPT A solution can be, tuning the antenna at its resonance frequency when a static environment is achieved ...
Year: 2009, Volume: 9, Issue: 1
... . Cogging torque is one of the important drawbacks of Figure 1. Applying discrete skew to a three-layer stator 1 these motors, which results in shaft vibration and noise. the slot-openings. This paper consists of two parts. In the first Moreover cogging torque causes in pulsating in motor torque one a novel idea is introduced ...
Year: 2009, Volume: 9, Issue: 1
... Additive White is as well omitted from the design. Our model can be Gaussian Noise (AWGN), Pout can be calculated according extended to a MIMO case ... Another energy optimization technique [1] recently proposes a cross layer approach where the signal-to-noise ratio gap approximation is used in order to jointly handle required bit rates, ...
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