Deprecated: Constant E_STRICT is deprecated in /home/polpe/public_html/system/core/Exceptions.php on line 75

A PHP Error was encountered

Severity: 8192

Message: Creation of dynamic property CI_URI::$config is deprecated

Filename: core/URI.php

Line Number: 101

Backtrace:

File: /home/polpe/public_html/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Creation of dynamic property CI_Router::$uri is deprecated

Filename: core/Router.php

Line Number: 127

Backtrace:

File: /home/polpe/public_html/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Creation of dynamic property Main::$benchmark is deprecated

Filename: core/Controller.php

Line Number: 75

Backtrace:

File: /home/polpe/public_html/application/controllers/Main.php
Line: 15
Function: __construct

File: /home/polpe/public_html/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Creation of dynamic property Main::$hooks is deprecated

Filename: core/Controller.php

Line Number: 75

Backtrace:

File: /home/polpe/public_html/application/controllers/Main.php
Line: 15
Function: __construct

File: /home/polpe/public_html/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Creation of dynamic property Main::$config is deprecated

Filename: core/Controller.php

Line Number: 75

Backtrace:

File: /home/polpe/public_html/application/controllers/Main.php
Line: 15
Function: __construct

File: /home/polpe/public_html/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Creation of dynamic property Main::$log is deprecated

Filename: core/Controller.php

Line Number: 75

Backtrace:

File: /home/polpe/public_html/application/controllers/Main.php
Line: 15
Function: __construct

File: /home/polpe/public_html/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Creation of dynamic property Main::$utf8 is deprecated

Filename: core/Controller.php

Line Number: 75

Backtrace:

File: /home/polpe/public_html/application/controllers/Main.php
Line: 15
Function: __construct

File: /home/polpe/public_html/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Creation of dynamic property Main::$uri is deprecated

Filename: core/Controller.php

Line Number: 75

Backtrace:

File: /home/polpe/public_html/application/controllers/Main.php
Line: 15
Function: __construct

File: /home/polpe/public_html/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Creation of dynamic property Main::$exceptions is deprecated

Filename: core/Controller.php

Line Number: 75

Backtrace:

File: /home/polpe/public_html/application/controllers/Main.php
Line: 15
Function: __construct

File: /home/polpe/public_html/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Creation of dynamic property Main::$router is deprecated

Filename: core/Controller.php

Line Number: 75

Backtrace:

File: /home/polpe/public_html/application/controllers/Main.php
Line: 15
Function: __construct

File: /home/polpe/public_html/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Creation of dynamic property Main::$output is deprecated

Filename: core/Controller.php

Line Number: 75

Backtrace:

File: /home/polpe/public_html/application/controllers/Main.php
Line: 15
Function: __construct

File: /home/polpe/public_html/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Creation of dynamic property Main::$security is deprecated

Filename: core/Controller.php

Line Number: 75

Backtrace:

File: /home/polpe/public_html/application/controllers/Main.php
Line: 15
Function: __construct

File: /home/polpe/public_html/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Creation of dynamic property Main::$input is deprecated

Filename: core/Controller.php

Line Number: 75

Backtrace:

File: /home/polpe/public_html/application/controllers/Main.php
Line: 15
Function: __construct

File: /home/polpe/public_html/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Creation of dynamic property Main::$lang is deprecated

Filename: core/Controller.php

Line Number: 75

Backtrace:

File: /home/polpe/public_html/application/controllers/Main.php
Line: 15
Function: __construct

File: /home/polpe/public_html/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Creation of dynamic property Main::$load is deprecated

Filename: core/Controller.php

Line Number: 78

Backtrace:

File: /home/polpe/public_html/application/controllers/Main.php
Line: 15
Function: __construct

File: /home/polpe/public_html/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Creation of dynamic property Main::$parser is deprecated

Filename: core/Loader.php

Line Number: 1290

Backtrace:

File: /home/polpe/public_html/application/controllers/Main.php
Line: 15
Function: __construct

File: /home/polpe/public_html/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Creation of dynamic property Main::$form_validation is deprecated

Filename: core/Loader.php

Line Number: 1290

Backtrace:

File: /home/polpe/public_html/application/controllers/Main.php
Line: 15
Function: __construct

File: /home/polpe/public_html/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Creation of dynamic property Main::$MyModel is deprecated

Filename: core/Loader.php

Line Number: 353

Backtrace:

File: /home/polpe/public_html/application/controllers/Main.php
Line: 15
Function: __construct

File: /home/polpe/public_html/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: ini_set(): Session ini settings cannot be changed after headers have already been sent

Filename: Session/Session.php

Line Number: 282

Backtrace:

File: /home/polpe/public_html/application/controllers/Main.php
Line: 17
Function: library

File: /home/polpe/public_html/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: session_set_cookie_params(): Session cookie parameters cannot be changed after headers have already been sent

Filename: Session/Session.php

Line Number: 289

Backtrace:

File: /home/polpe/public_html/application/controllers/Main.php
Line: 17
Function: library

File: /home/polpe/public_html/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: ini_set(): Session ini settings cannot be changed after headers have already been sent

Filename: Session/Session.php

Line Number: 304

Backtrace:

File: /home/polpe/public_html/application/controllers/Main.php
Line: 17
Function: library

File: /home/polpe/public_html/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: ini_set(): Session ini settings cannot be changed after headers have already been sent

Filename: Session/Session.php

Line Number: 314

Backtrace:

File: /home/polpe/public_html/application/controllers/Main.php
Line: 17
Function: library

File: /home/polpe/public_html/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: ini_set(): Session ini settings cannot be changed after headers have already been sent

Filename: Session/Session.php

Line Number: 315

Backtrace:

File: /home/polpe/public_html/application/controllers/Main.php
Line: 17
Function: library

File: /home/polpe/public_html/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: ini_set(): Session ini settings cannot be changed after headers have already been sent

Filename: Session/Session.php

Line Number: 316

Backtrace:

File: /home/polpe/public_html/application/controllers/Main.php
Line: 17
Function: library

File: /home/polpe/public_html/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: ini_set(): Session ini settings cannot be changed after headers have already been sent

Filename: Session/Session.php

Line Number: 317

Backtrace:

File: /home/polpe/public_html/application/controllers/Main.php
Line: 17
Function: library

File: /home/polpe/public_html/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: ini_set(): Session ini settings cannot be changed after headers have already been sent

Filename: drivers/Session_files_driver.php

Line Number: 94

Backtrace:

File: /home/polpe/public_html/application/controllers/Main.php
Line: 17
Function: library

File: /home/polpe/public_html/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: session_set_save_handler(): Session save handler cannot be changed after headers have already been sent

Filename: Session/Session.php

Line Number: 108

Backtrace:

File: /home/polpe/public_html/application/controllers/Main.php
Line: 17
Function: library

File: /home/polpe/public_html/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: session_start(): Session cannot be started after headers have already been sent

Filename: Session/Session.php

Line Number: 141

Backtrace:

File: /home/polpe/public_html/application/controllers/Main.php
Line: 17
Function: library

File: /home/polpe/public_html/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Creation of dynamic property Main::$session is deprecated

Filename: core/Loader.php

Line Number: 1290

Backtrace:

File: /home/polpe/public_html/application/controllers/Main.php
Line: 17
Function: library

File: /home/polpe/public_html/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Creation of dynamic property CI_Loader::$benchmark is deprecated

Filename: core/Loader.php

Line Number: 925

Backtrace:

File: /home/polpe/public_html/application/controllers/Main.php
Line: 18
Function: view

File: /home/polpe/public_html/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Creation of dynamic property CI_Loader::$hooks is deprecated

Filename: core/Loader.php

Line Number: 925

Backtrace:

File: /home/polpe/public_html/application/controllers/Main.php
Line: 18
Function: view

File: /home/polpe/public_html/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Creation of dynamic property CI_Loader::$config is deprecated

Filename: core/Loader.php

Line Number: 925

Backtrace:

File: /home/polpe/public_html/application/controllers/Main.php
Line: 18
Function: view

File: /home/polpe/public_html/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Creation of dynamic property CI_Loader::$log is deprecated

Filename: core/Loader.php

Line Number: 925

Backtrace:

File: /home/polpe/public_html/application/controllers/Main.php
Line: 18
Function: view

File: /home/polpe/public_html/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Creation of dynamic property CI_Loader::$utf8 is deprecated

Filename: core/Loader.php

Line Number: 925

Backtrace:

File: /home/polpe/public_html/application/controllers/Main.php
Line: 18
Function: view

File: /home/polpe/public_html/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Creation of dynamic property CI_Loader::$uri is deprecated

Filename: core/Loader.php

Line Number: 925

Backtrace:

File: /home/polpe/public_html/application/controllers/Main.php
Line: 18
Function: view

File: /home/polpe/public_html/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Creation of dynamic property CI_Loader::$exceptions is deprecated

Filename: core/Loader.php

Line Number: 925

Backtrace:

File: /home/polpe/public_html/application/controllers/Main.php
Line: 18
Function: view

File: /home/polpe/public_html/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Creation of dynamic property CI_Loader::$router is deprecated

Filename: core/Loader.php

Line Number: 925

Backtrace:

File: /home/polpe/public_html/application/controllers/Main.php
Line: 18
Function: view

File: /home/polpe/public_html/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Creation of dynamic property CI_Loader::$output is deprecated

Filename: core/Loader.php

Line Number: 925

Backtrace:

File: /home/polpe/public_html/application/controllers/Main.php
Line: 18
Function: view

File: /home/polpe/public_html/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Creation of dynamic property CI_Loader::$security is deprecated

Filename: core/Loader.php

Line Number: 925

Backtrace:

File: /home/polpe/public_html/application/controllers/Main.php
Line: 18
Function: view

File: /home/polpe/public_html/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Creation of dynamic property CI_Loader::$input is deprecated

Filename: core/Loader.php

Line Number: 925

Backtrace:

File: /home/polpe/public_html/application/controllers/Main.php
Line: 18
Function: view

File: /home/polpe/public_html/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Creation of dynamic property CI_Loader::$lang is deprecated

Filename: core/Loader.php

Line Number: 925

Backtrace:

File: /home/polpe/public_html/application/controllers/Main.php
Line: 18
Function: view

File: /home/polpe/public_html/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Creation of dynamic property CI_Loader::$load is deprecated

Filename: core/Loader.php

Line Number: 925

Backtrace:

File: /home/polpe/public_html/application/controllers/Main.php
Line: 18
Function: view

File: /home/polpe/public_html/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Creation of dynamic property CI_Loader::$parser is deprecated

Filename: core/Loader.php

Line Number: 925

Backtrace:

File: /home/polpe/public_html/application/controllers/Main.php
Line: 18
Function: view

File: /home/polpe/public_html/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Creation of dynamic property CI_Loader::$form_validation is deprecated

Filename: core/Loader.php

Line Number: 925

Backtrace:

File: /home/polpe/public_html/application/controllers/Main.php
Line: 18
Function: view

File: /home/polpe/public_html/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Creation of dynamic property CI_Loader::$MyModel is deprecated

Filename: core/Loader.php

Line Number: 925

Backtrace:

File: /home/polpe/public_html/application/controllers/Main.php
Line: 18
Function: view

File: /home/polpe/public_html/index.php
Line: 315
Function: require_once

A PHP Error was encountered

Severity: 8192

Message: Creation of dynamic property CI_Loader::$session is deprecated

Filename: core/Loader.php

Line Number: 925

Backtrace:

File: /home/polpe/public_html/application/controllers/Main.php
Line: 18
Function: view

File: /home/polpe/public_html/index.php
Line: 315
Function: require_once

Polcz Péter honlapja

Tartalomjegyzék

Nemlineáris rendszerek stabilitásának vizsgálata

XXXIII. OTDK

An improved method for estimating the domain of attraction of uncertain nonlinear systems

Cím magyarul: Továbbfejlesztett módszer bizonytalan nemlineáris rendszerek stabilitási tartományának becslésére
Témavezető: Dr. Szederkényi Gábor

A dolgozatban egy optimalizáción alapuló módszer kerül bemutatásra Lyapunov függvények generálására és ezek segítségével történő bizonytalan nemlineáris (polinomiális és racionális tagokat tartalmazó) rendszerek stabilitási tartományának becslésére. A keresett Lyapunov függvény egy speciális kvadratikus alakban adott. A Lyapunov függvény pozitivitása és ennek (a vizsgált dinamikus rendszer megoldásai mentén vett) idő szerinti deriváltjának negativitása lineáris mátrixegyenlőtlenségek (LMI) segítségével biztosítható. Kiindulási pontként egy olyan szakirodalomból vett eljárás szolgált, amelyben a szerzők a lineáris mátrixegyenlőtlenségek konzervativitásának csökkentése érdekében a Finsler lemmát alkalmazták.

A bemutatott eljárásban a saját hozzájárulások és fejlesztések a következőképpen összegezhetők:
  1. A szükséges modelltranszformációk melyek a vizsgálandó rendszer egyenletét az optimalizációs algoritmus által elvárt alakra hozzák, automatikusak. Ugyanakkor a lineáris tört transzformáció (LFT) és további algebrai átalakítások segítségével a Lyapunov függvényben megjelenő monomok és racianális tagok száma lényegesen kisebb mint a kiindulási pontként szolgáló módszer esetén. Ennek köszönhetően az optimalizációs feladat dimenziója és a szabad változók száma is jelentősen kisebb mint a szakirodalomból ismert egyéb eljárások esetén.
  2. Egy algoritmus került kidolgozásra a Finsler lemmában megjelenő annihilátor generálására.
  3. Egy továbbfejlesztett módszert dolgoztam ki a kiszámított Lyapunov függvény legnagyobb szinthalmazának meghatározására, mely a vizsgált rendszer dinamikájára nézve invariáns.
  4. A szakirodalomból átvett módszerben alkalmazott képleteket az LMIk előállítására egyszerűsített alakban írtam fel. A dolgozatban bemutatott eljárást hét különböző, az irodalomban is megtalálható dinamikus rendszer esetén szemléltettem.

A dolgozatban bemutatott eredmények alapján egy nemzetközi folyóiratcikk, két nemzetközi konferenciacikk és egy kutatói beszámoló került publikálásra.

Letölthető dokumentum: OTDK dolgozat