نتایج جستجو برای: mult o meter quality control
تعداد نتایج: 2516339 فیلتر نتایج به سال:
A dual-rate 4.7/6.5 kbits/s algebraic code excited linear predictive (ACELP) codec is proposed for adapt ive speech communicators, which can d r o p their source ra te a n d speech quali ty under network control i n order t o invoke a more e r ro r resilient modem amongst less favourable channel conditions. Sourcematched Bose-Chaudhuri-Hocquenghem (BCH) codecs combined with un-equal ,protection...
Given two covar iance matrices R and S for a given elliptically con toured distribution, we show how simple inequalities between the matr ix elements imply that ER(f)< Es(f), e.g., when x = (xil,i ...... i,) is a mult i index vector and f ( x ) = rain max rain max. . .xi l ..... i,, i l i2 i3 or f(x) is the indicator funct ion of sets such as (3 U N U...rx, ...... ~._-<;o, ..... ,~ i l i2 i3
Această lucrare prezintă implementarea algoritmului FFT (Cooley-Tukey) intens utilizat la reconstrucţia imaginilor RMN pe o maşină revoluţionară de calcul paralel, Connex Array. Valorificând structura şi prelucrarea vectorială a informaţiilor in Connex Array, reconstrucţia unei imagini RMN s-a facut mult mai rapid decat în majoritatea scanerelor comerciale. Rezultatele sunt remarcabile. Propune...
Recunoaşterea de vorbire în general şi recunoaşterea de cuvinte izolate în particular sunt procese intens computaţionale care consumă mult timp într-un sistem automat de recunoaştere de vorbire. Această problemă este de fapt gâtuirea sistemelor de recunoaştere de vorbire în timp real. Lucrare de faţă abordează optimizarea procesului de recunoaştere prezentând o metodă inovativă de recunoştere î...
This new LCR Meter is especially designed for measurements of low-value components in integrated circuits and thinJilm hybrid circuits, as wellas of discrete components. /t uses a four-pair measurement technique to reduce errors caused by stray capacitance, residual inductance, and mutual inductance of the tesf /eads. T N THE MANUFACTURE of integrated circuits, I good process control is essenti...
a significant problem in multicarrier communication systems is the necessity to reduce the value of papr (peak-to-average power ratio) of transmitting signal. in this thesis we study the effect of the system parameters such as coding and modulation types on papr and ultimate ber in a mc-cdma system. in this study we consider fading channel as well as the nonlinearity of transmitter’s amplifier ...
In this article we focus on how quality of service) guarantees can be provided for RSVP flows during handoff events in an IP micromobility network. For this purpose, RSVP message delays and signaling overheads should be minimized, and handoff service disruption should also be minimized. By rerouting the RSVP branch path at a crossover router at every handoff event, and establishing the new RSVP...
Microelectromechanical systems (MEMS) incorporating active piezoelectric layers offer integrated actuation, sensing, and transduction. The broad implementation of such active MEMS has long been constrained by the inability to integrate materials with giant piezoelectric response, such as Pb(Mg(1/3)Nb(2/3))O(3)-PbTiO(3) (PMN-PT). We synthesized high-quality PMN-PT epitaxial thin films on vicinal...
A p l a n calculus is presented which is being used to represent p r o g r a m s and a l i b ra ry of standard data and control abstractions in t h e p r o g r a m m e r ' s apprent ice . Important features of this formalism i n c l u d e : p rogramming language independence, additivity, v e r i f i a b i l i t y and mult ip le points of v iew. The logical foundations of t h e r e p r e s e n t...
The stability of radiance measurements taken by the Sky Quality Meter (SQM)was tested under rapidly changing temperature conditions during exposure to a stable light field in the laboratory. The reported radiance was found to be negatively correlated with temperature, but remained within 7% of the initial reported radiance over a temperature range of -15 °C to 35 °C, and during temperature chan...
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