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Search results for: noise
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Year: 2009, Volume: 9, Issue: 3
... for improvement of steady state. To benefit of these two these important non linearity. strategies, a fuzzy supervisor selects the most advantageous 2. Important variation of noise in the regulation loop, for cases during the system functioning. This control strategy is example: sensors noise [4, 5]. applied for the ...
Year: 2010, Volume: 10, Issue: 1
... . INTRODUCTION bits, but require a high Quality of Service (Qos)[3]. For the Turbo codes behave very well at a low signal to noise above mentioned situations the best option is to use a code ratio (SNR) because of their sparse distance spectrum, thus matched interleaver [4 ], ...
Year: 2010, Volume: 10, Issue: 1
... implementing is reduced, due to the limitations of 1. saturation type that exist in the physical systems and due to 2 1 1. the increase of the noise level. The determination of the causal limit inverse model of the 1 hydraulic servo-system can be approached in two situations: 0.- the servo-system is invariant ...
Year: 2010, Volume: 10, Issue: 1
... effectiveness of the in AC/DC/AC applications, especially AC motor drives [8, proposed method in providing precise power control with minimum distortion and harmonic noises (THDi), and at the 9] are reported. Some other works successfully employed same time, low distortion in active and reactive powers. this ...
Year: 2010, Volume: 10, Issue: 1
... both maximum and 37 Advances in Electrical and Computer Engineering Volume 10, Number 1, 2010 minimum values. This may cause intolerable vibrations and U sRd U sRd noise or possible mechanical faults. These variable torques ψ sRd= 2 (ν sr+ jsωs) ;ψ rRd= 2 ν hr; (27) ...
Year: 2009, Volume: 9, Issue: 3
... tuning range of LC VCOs is very narrow, is developed to meet the phase noise and frequency band especially in low frequency bands. However, many studies requirements ... limited regime corrupting phase noise. According to and gives useful insight into the phase noises. Figure 5 (5 ), gmT consists of trans-conductance of each coupled ...
Year: 2010, Volume: 10, Issue: 1
... tails around the sampling moments. The solutions reported In a practical receiver the synchronization circuit is by other researchers so far used a concave shape of the affected by noise, tracking error, distortion, multi-path frequency characteristic in the transition region beneath cut- propagation, intersymbol interference (ISI) and Doppler off frequency defined by ...
348. Basic Consideration for Signal Processing Solutions Used in Sigma-delta Based ADC and DAC Converters
Year: 2010, Volume: 10, Issue: 1
... be omitted. In the opposite case (sampling rate is decreased) the first filter is not necessary. Therefore both 1. In order to keep the large signal-to-noise-ratio (SNR), low-pass filters can be merged into one (Figure 5) with the very high quality D/A and A/D converters have ...
Year: 2009, Volume: 9, Issue: 3
... of 78 bytes, as it is calculated in Since the audio information is a continuous one, even in equation (1). quiet time intervals some background noise is to be transmitted. If uncompressed voice is carried, the necessary H= HRTP+ HUDP+ HIP+ HMAC= speed for the basic data flow ...
Year: 2009, Volume: 9, Issue: 3
... . The compressed histograms for selectivity accomplished, it remains to be further analyzed and the estimation in [14] are also of regular type. These effect of noise to be segregated by extra means, depending applications are only oriented towards large sample on the resulted, real statistical distribution. populations, where data grouping does ...
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