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Wyszukujesz frazę "time varying system" wg kryterium: Temat


Wyświetlanie 1-21 z 21
Tytuł:
Positive time-varying continuous-time linear systems and electrical circuits
Autorzy:
Kaczorek, T.
Powiązania:
https://bibliotekanauki.pl/articles/200313.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
linear
time-varying system
electrical circuit
stability test
system
test stabilności
obwód elektryczny
liniowość
Opis:
The positivity of time-varying continuous-time linear systems and electrical circuits are addressed. Necessary and sufficient conditions for the positivity of the systems and electrical circuits are established. It is shown that there exists a large class of positive electrical circuits with time-varying parameters. Examples of positive electrical circuits are presented.
Źródło:
Bulletin of the Polish Academy of Sciences. Technical Sciences; 2015, 63, 4; 837-842
0239-7528
Pojawia się w:
Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An extension of the Cayley-Hamilton theorem for nonlinear time-varying systems
Autorzy:
Kaczorek, T.
Powiązania:
https://bibliotekanauki.pl/articles/908465.pdf
Data publikacji:
2006
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
wydłużenie
twierdzenie Cayleya-Hamiltona
nieliniowość
układ niestacjonarny
extension
Cayley-Hamilton theorem
nonlinear
time-varying system
Opis:
The classical Cayley-Hamilton theorem is extended to nonlinear time-varying systems with square and rectangular system matrices. It is shown that in both cases system matrices satisfy many equations with coefficients being the coefficients of characteristic polynomials of suitable square matrices. The proposed theorems are illustrated with numerical examples.
Źródło:
International Journal of Applied Mathematics and Computer Science; 2006, 16, 1; 141-145
1641-876X
2083-8492
Pojawia się w:
International Journal of Applied Mathematics and Computer Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Positivity and stability of fractional descriptor time-varying discrete-time linear systems
Autorzy:
Kaczorek, T.
Powiązania:
https://bibliotekanauki.pl/articles/331399.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
fractional system
descriptor system
time varying system
positive system
discrete-time system
układ ułamkowy
układ deskrypcyjny
układ dodatni
układ dyskretno-czasowy
Opis:
The Weierstrass–Kronecker theorem on the decomposition of the regular pencil is extended to fractional descriptor time-varying discrete-time linear systems. A method for computing solutions of fractional systems is proposed. Necessary and sufficient conditions for the positivity of these systems are established.
Źródło:
International Journal of Applied Mathematics and Computer Science; 2016, 26, 1; 5-13
1641-876X
2083-8492
Pojawia się w:
International Journal of Applied Mathematics and Computer Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Quadratic performance analysis of switched affine time-varying systems
Autorzy:
Li, W.
Huang, C.
Zhai, G.
Powiązania:
https://bibliotekanauki.pl/articles/330032.pdf
Data publikacji:
2018
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
switched affine system
time varying system
quadratic stabilization
tracking
L2 gain
switching law
differential LMIs
observer
system zmienny w czasie
stabilizacja kwadratowa
śledzenie
obserwator
Opis:
We analyze quadratic performance for switched systems which are composed of a finite set of affine time-varying subsystems, where both subsystem matrices and affine vectors are switched, and no single subsystem has desired quadratic performance. The quadratic performance indexes we deal with include stability, tracking and L2 gain. We show that if a linear convex combination of subsystem matrices is uniformly Hurwitz and another convex combination of affine vectors is zero, then we can design a state-dependent switching law (state feedback) and an output-dependent switching law (output feedback) such that the entire switched affine system is quadratically stable at the origin. In the case where the convex combination of affine vectors is nonzero, we show that the tracking control problem can be posed and solved using a similar switching strategy. Finally, we consider the L2 gain analysis problem for the switched affine time-varying systems under state feedback.
Źródło:
International Journal of Applied Mathematics and Computer Science; 2018, 28, 3; 429-440
1641-876X
2083-8492
Pojawia się w:
International Journal of Applied Mathematics and Computer Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The steady-state impedance operator of a linear periodically time-varying one-port network and its determination
Autorzy:
Kłosiński, R.
Powiązania:
https://bibliotekanauki.pl/articles/930020.pdf
Data publikacji:
2009
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
układ liniowy
parametr okresowo zmienny
operator cykloparametryczny
identyfikacja
impedancja okresowo zmienna
okresowy stan ustalony
generowanie harmonicznych
periodically time-varying impedance
periodic steady state
linear periodically time-varying system
circular parametric operator
harmonics aliasing
identification
Opis:
The main subject of the paper is the description and determination of the impedance operator of a linear periodically time-varying (LPTV) one-port network in the steady-state. If the one-port network parameters and the supply vary periodically with the same period, the network reaches a periodic steady state. However, the sinusoidal supply may induce a nonsinusoidal voltage or current. It is impossible to describe such a phenomenon by means of one complex number. A periodically time-varying one-port network working in a steady-state regime can be described with a circular parametric operator. Within the domain of discrete time, such an operator takes the form of a matrix with real-valued entries. The circular parametric operator can be transformed into the frequency domain using a two-dimensional DFT. This description makes it possible to quantitatively assess LPTV system input and output harmonics aliasing. The paper also presents the derivation and the proof of convergence of an iteration scheme for the identification of circular parametric operators. The scheme may be used to determine the impedance of an LPTV one-port network. Some results of computer simulations are shown.
Źródło:
International Journal of Applied Mathematics and Computer Science; 2009, 19, 4; 661-673
1641-876X
2083-8492
Pojawia się w:
International Journal of Applied Mathematics and Computer Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Time-frequency responses of generalized first order parametric sections
Autorzy:
Piwowar, A.
Powiązania:
https://bibliotekanauki.pl/articles/140455.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
LTV system
linear time varying
parametric system
time-frequency response
Opis:
This paper presents the method of analysis of parametric systems in frequency domain. These systems are also referred to as linear time varying systems (LTV). The article includes a description of an analytical method for determining the frequency response of the first order parametric circuit with non-periodically variable parameters. The results have been illustrated by an example.
Źródło:
Archives of Electrical Engineering; 2015, 64, 3; 371-377
1427-4221
2300-2506
Pojawia się w:
Archives of Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A Lyapunov functional for a neutral system with a time-varying delay
Autorzy:
Duda, J.
Powiązania:
https://bibliotekanauki.pl/articles/200885.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Lyapunov functional
time-varying delay
neutral system
Opis:
The paper presents a method of determining of the Lyapunov functional for a linear neutral system with an interval time-varying delay. The Lyapunov functional is constructed for the system with a time-varying delay with a given time derivative, which is calculated on the trajectory of the system with a time-varying delay. The presented method gives analytical formulas for the coefficients of the Lyapunov functional.
Źródło:
Bulletin of the Polish Academy of Sciences. Technical Sciences; 2013, 61, 4; 911-918
0239-7528
Pojawia się w:
Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Global stability of positive discrete-time time-varying nonlinear feedback systems
Autorzy:
Kaczorek, Tadeusz
Sajewski, Łukasz
Powiązania:
https://bibliotekanauki.pl/articles/2058440.pdf
Data publikacji:
2021
Wydawca:
Uniwersytet Technologiczno-Humanistyczny im. Kazimierza Pułaskiego w Radomiu
Tematy:
global stability
discrete-time
positive
feedback
time-varying
nonlinear system
Opis:
The global stability of positive discrete-time time-varying nonlinear systems with time-varying scalar feedbacks is investigated. Sufficient conditions for the asymptotic stability of discrete-time positive time-varying linear systems are given. The new conditions are applied to discrete-time positive time-varying nonlinear systems with time-varying feedbacks. Sufficient conditions are established for the global stability of the discrete-time positive time-varying nonlinear systems with feedbacks.
Źródło:
Journal of Automation, Electronics and Electrical Engineering; 2021, 3, 1; 17--20
2658-2058
2719-2954
Pojawia się w:
Journal of Automation, Electronics and Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A computer algorithm for the solution of the Astate equation for time-varying fractional discrete-time linear systems
Autorzy:
Kaczorek, T.
Borawski, K.
Powiązania:
https://bibliotekanauki.pl/articles/114166.pdf
Data publikacji:
2015
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
linear
time-varying
fractional
discrete-time system
state equation
solution
Opis:
Method for finding of the solution of the state equation for time-varying fractional discrete-time linear systems is proposed and computer algorithm is presented. The effectiveness of the proposed algorithm is demonstrated on numerical examples.
Źródło:
Measurement Automation Monitoring; 2015, 61, 1; 2-4
2450-2855
Pojawia się w:
Measurement Automation Monitoring
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Positivity and stability of time-varying fractional discrete-time linear systems
Autorzy:
Kaczorek, T.
Borawski, K.
Powiązania:
https://bibliotekanauki.pl/articles/114196.pdf
Data publikacji:
2015
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
linear
time-varying
fractional
discrete-time system
positivity
asymptotic stability
Opis:
Necessary and sufficient conditions for the positivity of time-varying fractional discrete-time linear systems are established. The problem of asymptotic stability of the positive time-varying fractional discrete-time linear systems is analyzed and sufficient conditions are given. Considerations are illustrated by numerical examples.
Źródło:
Measurement Automation Monitoring; 2015, 61, 3; 84-87
2450-2855
Pojawia się w:
Measurement Automation Monitoring
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Model of time-varying linear systems and Kolmogorov equations
Autorzy:
Krumov, A. V.
Powiązania:
https://bibliotekanauki.pl/articles/230071.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
time-varying
linear system
stability
dynamical systems
Kolmogorov
model
Opis:
In the paper an approximate model of time-varying linear systems using a sequence of timeinvariant systems is suggested. The conditions for validity of the approximation are proven with a theorem. Examples comparing the numerical solution of the original system and the analytical solution of the model are given. For the system under the consideration a new criterion giving sufficient conditions for robust Lagrange stability is suggested. The criterion is proven with a theorem. Examples are given showing stable and non stable solutions of a time-varying system and the results are compared with the numerical Runge-Kutta solution of the system. In the paper an important application of the described method of solution of linear systems with timevarying coefficients, namely analytical solution of the Kolmogorov equations is shown.
Źródło:
Archives of Control Sciences; 2015, 25, 2; 201-214
1230-2384
Pojawia się w:
Archives of Control Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Positive and stable time-varying continous-time linear systems and electrical circuits
Autorzy:
Kaczorek, T.
Powiązania:
https://bibliotekanauki.pl/articles/377577.pdf
Data publikacji:
2015
Wydawca:
Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
Tematy:
positive
linear
time-varying
system
electrical circuit
stability
test
Opis:
The positivity and stability of a class of time-varying continuous-time linear systems and electrical circuits are addressed. Sufficient conditions for the positivity and asymptotic stability of the system are established. It is shown that there exists a large class of positive and asymptotically stable electrical circuits with time-varying parameters. Examples of positive electrical circuits are presented.
Źródło:
Poznan University of Technology Academic Journals. Electrical Engineering; 2015, 81; 11-19
1897-0737
Pojawia się w:
Poznan University of Technology Academic Journals. Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Robust stability of positive linear time delay systems under time-varying perturbations
Autorzy:
Ngoc, P. H. A.
Tinh, C. T.
Powiązania:
https://bibliotekanauki.pl/articles/200075.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
robust stability
delay system
time-varying perturbation
stabilność
system opóźniania
perturbacja
Opis:
By a novel approach, we get explicit robust stability bounds for positive linear time-invariant time delay differential systems subject to time-varying structured perturbations or non-linear time-varying perturbations. Some examples are given to illustrate the obtained results. To the best of our knowledge, the results of this paper are new.
Źródło:
Bulletin of the Polish Academy of Sciences. Technical Sciences; 2015, 63, 4; 947-954
0239-7528
Pojawia się w:
Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of positivity and stability of time-varying continuous-time linear systems and electrical circuits
Autorzy:
Kaczorek, T.
Powiązania:
https://bibliotekanauki.pl/articles/97265.pdf
Data publikacji:
2015
Wydawca:
Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
Tematy:
positive
linear
time-varying
system
electrical circuit
stability
Lyapunov method
test
Opis:
The positivity and stability of a class of time-varying continuous-time linear systems and electrical circuits are addressed. Sufficient conditions for the positivity and asymptotic stability of the system are established. It is shown that there exists a large class of positive and asymptotically stable electrical circuits with time-varying parameters. The Lyapunov method is extended to positive nonlinear systems. Examples of positive electrical circuits are presented.
Źródło:
Computer Applications in Electrical Engineering; 2015, 13; 1-18
1508-4248
Pojawia się w:
Computer Applications in Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Positive and asymptotically stable time-varying continuous-time linear systems and electrical circuits
Dodatnie i stabilne asymptotycznie ciągłe układy i obwody elektryczne o parametrach zmiennych w czasie
Autorzy:
Kaczorek, T.
Powiązania:
https://bibliotekanauki.pl/articles/315088.pdf
Data publikacji:
2016
Wydawca:
Instytut Naukowo-Wydawniczy "SPATIUM"
Tematy:
obwody elektryczne
adaptacyjny układ sterowania
system liniowy
electrical circuits
time varying systems
linear system
Opis:
The positivity and asymptotic stability of time-varying continuous-time linear systems and electrical circuits are addressed. Necessary and sufficient conditions for the positivity and asymptotic stability of the systems and electrical circuits are established. It is shown that there exists a large class of positive and asymptotically stable electrical circuits with time-varying parameters. Examples of positive and asymptotically stable electrical circuits are presented.
W pracy są analizowane zagadnienia dodatniości i stabilności asymptotycznej ciągłych układów i obwodów elektrycznych o parametrach zmiennych w czasie. Podano warunki konieczne i wystarczające dodatniości i stabilności asymptotycznej tej klasy układów i obwodów elektrycznych. Zostanie wykazane, że istnieje obszerna klasa dodatnich i stabilnych asymptotycznie obwodów elektrycznych o zmiennych parametrach. Rozważania ogólne zostaną zilustrowane przykładami obwodów elektrycznych o zmiennych w czasie parametrach.
Źródło:
Autobusy : technika, eksploatacja, systemy transportowe; 2016, 17, 6; 1362-1367
1509-5878
2450-7725
Pojawia się w:
Autobusy : technika, eksploatacja, systemy transportowe
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Positive Descriptor Time-varying Discrete-time Linear Systems and Their Asymptotic Stability
Autorzy:
Kaczorek, T.
Powiązania:
https://bibliotekanauki.pl/articles/117205.pdf
Data publikacji:
2015
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
Methods and Algorithms
Asymptotic Stability
Positive Linear System
Weierstrass-Kronecker Theorem
Descriptor Time-Varying Discrete-Time Linear Systems
Positive Descriptor Time-Varying Discrete-Time Linear Systems
Positive Descriptor Discrete-Time Linear Systems
Opis:
The positivity and asymptotic stability of the descriptor time-varying discrete-time linear systems are addressed. The Weierstrass-Kronecker theorem on the decomposition of the regular pencil is extended to the time-varying discrete-time descriptor linear systems. Using the extension necessary and sufficient conditions for the positivity of the systems are established. Sufficient conditions for asymptotic stability of the positive systems are presented. The effectiveness of the tests is demonstrated on the example.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2015, 9, 1; 83-89
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Construction of integral equations describing limit equilibrium of cylindrical shell with a longitudinal crack under time-varying load
Autorzy:
Makhorkin, M.
Nykolyshyn, M
Powiązania:
https://bibliotekanauki.pl/articles/411396.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Oddział w Lublinie PAN
Tematy:
cylindrical shell
crack
exponential time dependence
varying load
system of singular integral equations
Opis:
The problem on limit equilibrium of a closed infinite cylindrical shell with a longitudinal crack under the action of time-varying load by the exponential law has been considered. According to presented conditions the expressions for the field of the stress-free deformations along the crack are presented in the form [wzory] are the operators identical to those given in [7] for the case of static load [wzory] and , are the operators that take into account the dependence of load on time. Using the same transformations that in the case of static load [7, 11], the key functions [wzory] are determined, and the clarification of the shell's stress-state is reduced to solving the system of singular integral equations (SIE). Its general form is similar to the same system constructed for static load [7], and the kernels of SIE have the form [wzory], where is a singular part [wzory], is a regular part in which the component [wzory] takes into account the time dependence of load [wzory], are described by the expressions similar to the same given in [7].
Źródło:
ECONTECHMOD : An International Quarterly Journal on Economics of Technology and Modelling Processes; 2016, 5, 3; 141-146
2084-5715
Pojawia się w:
ECONTECHMOD : An International Quarterly Journal on Economics of Technology and Modelling Processes
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Szegos First Limit Theorem in Terms of a Realization of a Continuous-Time Time-Varying System
Autorzy:
Iglesias, P. A.
Zang, G.
Powiązania:
https://bibliotekanauki.pl/articles/908132.pdf
Data publikacji:
2001
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
system opóźniania
teoria systemów
time varying systems
exponential dichotomies
coprime
inner/outer factorizations
Opis:
It is shown that the limit in an abstract version of Szego's limit theorem can be expressed in terms of the antistable dynamics of the system. When the system dynamics are regular, it is shown that the limit equals the difference between the antistable Lyapunov exponents of the system and those of its inverse. In the general case, the elements of the dichotomy spectrum give lower and upper bounds.
Źródło:
International Journal of Applied Mathematics and Computer Science; 2001, 11, 6; 1261-1276
1641-876X
2083-8492
Pojawia się w:
International Journal of Applied Mathematics and Computer Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Model‐free sliding mode control for a nonlinear teleoperation system with actuator dynamics
Autorzy:
Abdelwaheb, Henni Mansour
Abderrahmane, Kacimi
AEK, Belaidi
Powiązania:
https://bibliotekanauki.pl/articles/27314234.pdf
Data publikacji:
2023
Wydawca:
Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów
Tematy:
model free sliding mode controller
teleoperation robotic system
actuator dynamics
time-varying delay
model uncertainty
Opis:
Teleoperation robotic systems control, which enables humans to perform activities in remote situations, has become an extremely challenging field in recent decades. In this paper, a Model Free Proportional‐Derivative Slid‐ ing Mode Controller (MFPDSMC) is devoted to the syn‐ chronization problem of teleoperation systems subject to actuator dynamics, time‐varying delay, model uncer‐ tainty, and input interaction forces. For the first time, the teleoperation model used in this study combines actuator dynamics and manipulator models into a single equation, which improves model accuracy and brings it closer to the actual system than in prior studies. Further, the proposed control approach, called Free, involves the simple mea‐ surement of inputs and outputs to enhance the system’s performance without relying on any knowledge from the mathematical model. In addition, our strategy includes a Sliding Mode term with the MFPD term to increase system stability and attain excellent performance against external disturbances. Finally, using the Lyapunov func‐ tion under specified conditions, asymptotic stability is established, and simulation results are compared and provided to demonstrate the efficacy of the proposed strategy.
Źródło:
Journal of Automation Mobile Robotics and Intelligent Systems; 2023, 17, 1; 69--77
1897-8649
2080-2145
Pojawia się w:
Journal of Automation Mobile Robotics and Intelligent Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Locally Positive Nonlinear Systems
Autorzy:
Kaczorek, T.
Powiązania:
https://bibliotekanauki.pl/articles/908090.pdf
Data publikacji:
2003
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
automatyka
robotyka
local positiveness
time-varying
nonlinear system
local reachability in the direction of a cone
Opis:
The notion of locally positive nonlinear time-varying linear systems is introduced. Necessary and sufficient conditions for the local positiveness of nonlinear time-varying systems are established. The concept of local reachability in the direction of a cone is introduced, and sufficient conditions for local reachability in the direction of a cone of this class of nonlinear systems are presented.
Źródło:
International Journal of Applied Mathematics and Computer Science; 2003, 13, 4; 505-509
1641-876X
2083-8492
Pojawia się w:
International Journal of Applied Mathematics and Computer Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zastosowanie uproszczonych charakterystyk częstotliwościowych do analizy kanału komunikacyjnego o zmiennych w czasie parametrach
The use of simplified frequency characteristics for analysis of communication channels with time-varying parameters
Autorzy:
Grzyb, S.
Orłowski, P.
Powiązania:
https://bibliotekanauki.pl/articles/153490.pdf
Data publikacji:
2014
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
układ dyskretny
układ niestacjonarny
model kanału komunikacyjnego
zmienne opóźnienie
analiza częstotliwościowa
congestion
time-varying systems
communication channel
variable delays
discrete-time system
Opis:
Celem niniejszej pracy jest przedstawienie możliwości zastosowania uproszczonych charakterystyk częstotliwościowych do analizy dyskretnego, niestacjonarnego modelu kanału komunikacyjnego. W pierwszej części artykułu zaprezentowano przegląd literatury oraz skrócony opis modelu matematycznego zatoru w sieciach komputerowych. W dalszej części pracy zapisano uogólniony model układu przy pomocy notacji operatorowej oraz zastosowano metodę do wyznaczania przybliżonych charakterystyk częstotliwościowych : amplitudowej i fazowej. W ostatniej części pracy wyznaczono dla przyjętych wartości macierzy układu uproszczone charakterystyki częstotliwościowe oraz przebiegi czasowe.
The purpose of this paper is to present the possibilities of applying simplified frequency characteristics to the analysis of a discrete, non-stationary model of the communication channel. In the first part of the paper a review of the literature and a brief description of the mathematical model of congestion in computer networks are presented. The model is a linear, non-stationary, discrete dynamical system model that allows modelling of delays for any long duration. Such a model stored in the state variables enables the use of existing synthesis methods of control to avoid congestion and minimize their effects It is presented in equations (3)-(4). The following part delivers a generalized model of the system using the operator notation and the method determining the approximate frequency characteristics: amplitude and phase. It is described by relations (6)-(11). The last section is focused on delivering the simplified frequency characteristics. The results of calculations are presented in Fig. 2. The waveforms for the assumed values of the system matrix can be seen in Figs. 4, 5 and 6.
Źródło:
Pomiary Automatyka Kontrola; 2014, R. 60, nr 5, 5; 317-320
0032-4140
Pojawia się w:
Pomiary Automatyka Kontrola
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-21 z 21

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