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Wyszukujesz frazę "MISO" wg kryterium: Temat


Wyświetlanie 1-9 z 9
Tytuł:
Charakterystyka termofilnych drobnoustrojów z rodzaju Campylobacter izolowanych z różnych źródeł. IV. Przeżywalność C.jejuni na powierzchni peklowanego mięsa
KHARAKTERISTIKA TERMOFIL’NYKH MIKROBOW IZ RODA CAMPYLOBACTER, IZOLIROWANNYKH IZ RAZNYKH ISTOCHNOKOW. IV. Perezhiwanie C. jejuni na powerkhnosti zasolennogo mjasa
CHARACTERISTICS OF THERMOFILIC MICROORGANISMS FROM THE GENUS CAMPYLOBACTER ISOLATED FROM VARIOUS SOURCES. Part IV. Survival of C. jejuni on the surface of pickled meat
Autorzy:
Dabrowski, J.
Powiązania:
https://bibliotekanauki.pl/articles/873429.pdf
Data publikacji:
1988
Wydawca:
Narodowy Instytut Zdrowia Publicznego. Państwowy Zakład Higieny
Tematy:
drobnoustroje
mikroorganizmy
miso
peklowanie
Campylobacter jejuni
Źródło:
Roczniki Państwowego Zakładu Higieny; 1988, 39, 3
0035-7715
Pojawia się w:
Roczniki Państwowego Zakładu Higieny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Energy Consumption Models For MISO-UWB and TR-MISO-UWB Systems
Autorzy:
El Abboubi, A.
Elbahhar, F.
Heddebaut, M.
Elhillali, Y.
Powiązania:
https://bibliotekanauki.pl/articles/226206.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
energy efficiency
time reversal
MISO systems
UWB
Opis:
This paper, an energy consumption model is developed and exploited to evaluate the electrical energy consumption of ultra-wideband impulse radio (UWB-IR) systems. We develop the energy consumption models and our comparative study, on the one hand, for a system based single-input singleoutput (SISO) configuration and a multiple-input single-output (MISO) and, on the other hand, for a time reversal TR-MISO configuration and for MISO alone configuration. We consider an indoor propagation environment based on the 802.15.4a channel model. The results show very different behaviors depending on the propagation conditions, the number of antennas used, or on the number of transmitted symbols. Using such a model, a radiofrequency designer can obtain significant inputs to optimally select an adequate configuration to design an adaptive energyaware UWB-IR system.
Źródło:
International Journal of Electronics and Telecommunications; 2017, 63, 3; 285-291
2300-1933
Pojawia się w:
International Journal of Electronics and Telecommunications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Występowanie histaminy w konserwach rybnych
GISTAMIN W RYBNYKH KONSERWAKH
HISTAMINE PRESENCE IN CANNED FISH
Autorzy:
Windyga, B.
Sciezynska, H.
Gorecka, K.
Balcerzak, G.
Grochowska, A.
Powiązania:
https://bibliotekanauki.pl/articles/876381.pdf
Data publikacji:
1988
Wydawca:
Narodowy Instytut Zdrowia Publicznego. Państwowy Zakład Higieny
Tematy:
konserwy rybne
histamina
bakterie
zatrucia pokarmowe
miso
ryby
Źródło:
Roczniki Państwowego Zakładu Higieny; 1988, 39, 6
0035-7715
Pojawia się w:
Roczniki Państwowego Zakładu Higieny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Hardware Implementation of MISO on Orthogonal Frequency Division Multiplexing Platform with the Help of Alamouti Algorithm
Autorzy:
Kilaru, S.
Powiązania:
https://bibliotekanauki.pl/articles/226220.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
MISO
SISO
FPGA
Xilinx
BER
SNR
Alamouti
LTE
Opis:
Many software based OFDM techniques were proposed from last half decade to improve the performance of the system. This paper tried to implement the same with Hardwar implementation. We created Hardware based MISO platform with OFDM. We implemented Alamouti algorithm on this test bed. The test bed is implemented with the help of Field Programmable Gate Array (FPGA). The test bed is functionalized with the help of FPGA through Xilinx based system generator for DSP. In this paper we considered the 2×1 MISO implementation with Alamouti algorithm. The simulation results showed that BER and SNR are considerably high for MISO than SISO. The results also proved that proposed OFDM based Alamouti implementation for MISO is excellent in all performance criterions.
Źródło:
International Journal of Electronics and Telecommunications; 2017, 63, 2; 137-143
2300-1933
Pojawia się w:
International Journal of Electronics and Telecommunications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Voiceless Stop Consonant Modelling and Synthesis Framework Based on MISO Dynamic System
Autorzy:
Korvel, G.
Kostek, B.
Powiązania:
https://bibliotekanauki.pl/articles/177173.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
speech synthesis
consonant phonemes
phoneme modelling framework
MISO system
Opis:
A voiceless stop consonant phoneme modelling and synthesis framework based on a phoneme modeling in low-frequency range and high-frequency range separately is proposed. The phoneme signal is decomposed into the sums of simpler basic components and described as the output of a linear multiple-input and single-output (MISO) system. The impulse response of each channel is a third order quasi-polynomial. Using this framework, the limit between the frequency ranges is determined. A new limit point searching three-step algorithm is given in this paper. Within this framework, the input of the low-frequency component is equal to one, and the impulse response generates the whole component. The high-frequency component appears when the system is excited by semi-periodic impulses. The filter impulse response of this component model is single period and decays after three periods. Application of the proposed modelling framework for the voiceless stop consonant phoneme has shown that the quality of the model is sufficiently good.
Źródło:
Archives of Acoustics; 2017, 42, 3; 375-383
0137-5075
Pojawia się w:
Archives of Acoustics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Performance Improvement for Vehicular Communications Using Alamouti Scheme with High Mobility
Autorzy:
Youssefi, My Abdelkader
Mouhsen, Ahmed
Powiązania:
https://bibliotekanauki.pl/articles/308551.pdf
Data publikacji:
2020
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
IEEE 802.11p
MIMO
MISO
OFDM
SFBC
STBC
vehicular channel
Opis:
The IEEE 802.11p standard is the basic protocol for wireless access in a vehicular environment (WAVE), providing high throughput for multimedia and high quality for vehicular transmissions. However, IEEE 802.11p fails to offer any multi-antenna approaches. In this paper, a multipleinput single-output (MISO) implementation with orthogonal frequency division multiplexing (OFDM), aiming to improve the performance of IEEE 802.11p, is proposed. The authors investigate the impact of time-varying channel on the performance of Alamouti space-time block codes (STBC) in OFDM systems. The Alamouti STBC approach shows good performance in slow time-varying environments, while its Alamouti space frequency block codes (SFBC) counterpart performs better over fast time-varying environments. An adaptive switching scheme is proposed to select appropriate spaceblock coding (STBC or SFBC) in vehicular channels with high mobility levels. It is shown that the proposed adaptive scheme provides better performance compared with traditional spaceblock codes.
Źródło:
Journal of Telecommunications and Information Technology; 2020, 3; 47-56
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Identification of parametric models with a priori knowledge of process properties
Autorzy:
Janiszowski, K. B.
Wnuk, P.
Powiązania:
https://bibliotekanauki.pl/articles/330128.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
absolute error measure
constrained parameters estimation
parametric MISO models
błąd bezwzględny
estymacja parametrów
model parametryczny
Opis:
An approach to estimation of a parametric discrete-time model of a process in the case of some a priori knowledge of the investigated process properties is presented. The knowledge of plant properties is introduced in the form of linear bounds, which can be determined for the coefficient vector of the parametric model studied. The approach yields special biased estimation of model coefficients that preserves demanded properties. A formula for estimation of the model coefficients is derived and combined with a recursive scheme determined for minimization of the sum of absolute model errors. The estimation problem of a model with known static gains of inputs is discussed and proper formulas are derived. This approach can overcome the non-identifiability problem which has been observed during estimation based on measurements recorded in industrial closed-loop control systems. The application of the proposed approach to estimation of a model for an industrial plant (a water injector into the steam flow in a power plant) is presented and discussed.
Źródło:
International Journal of Applied Mathematics and Computer Science; 2016, 26, 4; 767-776
1641-876X
2083-8492
Pojawia się w:
International Journal of Applied Mathematics and Computer Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Fuzzy adaptive control of a class of MISO nonlinear systems
Autorzy:
Lagrat, I.
Ouakka, H.
Boutnhidi, I.
Powiązania:
https://bibliotekanauki.pl/articles/971004.pdf
Data publikacji:
2008
Wydawca:
Polska Akademia Nauk. Instytut Badań Systemowych PAN
Tematy:
identyfikacja
sterowanie adaptacyjne
układ nieliniowy
MISO systems
identification
fuzzy clustering
Takagi-Sugeno fuzzy model
adaptive control
nonlinear system
Opis:
This paper presents a fuzzy adaptive control of a class of MISO nonlinear systems. The dynamic behaviour of each MISO systems is composed of a nonlinear term, interactions effect between the inputs, and disturbances. In these circumstances, adaptive control becomes very difficult to implement and not always an evident task. Thus, the MISO system is approximated by the Takagi-Sugeno fuzzy model. The advantage of this approximation is beneficial in the sense that it allows for converting the nonlinear problem into a linear one. In this respect, the coupling, nonlinearity and unmodeled dynamics are easily compensated. The identification and the control are conducted at the level of each local linear model based on fuzzy approach. The computational load and the complexity of nonlinear approach are reduced and permit wide applicability. The validity and the performance are tested numerically.
Źródło:
Control and Cybernetics; 2008, 37, 1; 177-190
0324-8569
Pojawia się w:
Control and Cybernetics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comparative Analysis of Channel Estimation Techniques in SISO, MISO and MIMO Systems
Autorzy:
Obinna, O.
Kennedy, O.
Osemwegie, O.
Nsikan, N.
Powiązania:
https://bibliotekanauki.pl/articles/226922.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
multiple-input multiple-output (MIMO)
multiple-input single output (MISO)
single input single output (SISO)
least square estimation (L.S)
minimum mean squared error (MMSE) estimators
mean squared error (MSE)
bit error rate (BER)
Opis:
The ever-growing need for high data rate, bandwidth efficiency, reliability, less complexity and less power consumption in our communication systems is on the increase. Modern techniques have to be developed and put in place to meet these requirements. Research has shown, that compared to conventional Single Input Single Output (SISO) systems, Multiple-Input Single Output (MISO), and Multiple-Input Multiple-Output (MIMO) can actually increase the data rate of a communication system, without actually requiring more transmit power or bandwidth. This paper aims at the investigation of the existing channel estimation techniques. Based on the pilot arrangement, the block type and comb type are compared, employing the Least Square estimation (L.S) and Minimum Mean Squared Error (MMSE) estimators. Pilots occupy bandwidth, minimizing the number of pilots used to estimate the channel, in order to allow for more bandwidth utilization for data transmission, without compromising the accuracy of the estimates is taken into consideration. Various channel interpolation techniques and pilot-data insertion ratio are investigated, simulated and compared, to determine the best performance technique with less complexity and minimum power consumption. As performance measures, the Mean Squared Error (MSE) and Bit Error Rate (BER) as a function of Signal to Noise power Ratio (SNR) of the different channel estimation techniques are plotted, in order to identify the technique with the most optimal performance. The complexity and energy efficiency of the techniques are also investigated. The system modelling and simulations are carried out using Matlab simulation package. The MIMO gives the optimum performance, followed by the MISO and SISO. This is as a result of the diversity and multiplexing gain experienced in the multiple antenna techniques using the STBC.
Źródło:
International Journal of Electronics and Telecommunications; 2017, 63, 3; 299-304
2300-1933
Pojawia się w:
International Journal of Electronics and Telecommunications
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-9 z 9

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