. . "Schroeder, Heinz-Joerg" . "Modelov\u00E1n\u00ED fokusa\u010Dn\u00ED chybov\u00E9 charakteristiky DVD p\u0159ehr\u00E1va\u010De"@cs . "DVD player, optical disc, astigmatism, focus error signal, cylindrical lens, light intensity distribution, photodetector."@en . . "Modelov\u00E1n\u00ED fokusa\u010Dn\u00ED chybov\u00E9 charakteristiky DVD p\u0159ehr\u00E1va\u010De"@cs . "P(GA102/01/1485), Z(MSM 260000013)" . "0-7803-7386-3" . "This paper presents a new approach to focus error modelling in a DVD player, applied to an industrial system, developed in STMicroelectronics laboratories. First, two mathematical models, based on astigmatic method and on opto-geometrical analysis, are given. A numerical model is given too. Then a curve fitting method is applied, using real data from the industrial system, in order to estimate the unknown parameters of these models. They will be further included in the focus error control loop in orderr to improve the performance analysis." . . . . "2"^^ . "26220" . . . . "This paper presents a new approach to focus error modelling in a DVD player, applied to an industrial system, developed in STMicroelectronics laboratories. First, two mathematical models, based on astigmatic method and on opto-geometrical analysis, are given. A numerical model is given too. Then a curve fitting method is applied, using real data from the industrial system, in order to estimate the unknown parameters of these models. They will be further included in the focus error control loop in orderr to improve the performance analysis."@en . . . "Filardi, Giampaolo" . . "629-630" . "Modelling the focus error characteristic of a DVD player"@en . "Hnili\u010Dka, Bohumil" . "[1D9DC569DB90]" . . "RIV/00216305:26220/02:PU29418!RIV06-GA0-26220___" . "Proceedings of the 2002 IEEE International Conference on Control Applications" . "Besancon-Voda, Alina" . "IEEE" . "Glasgow, U.K." . "653832" . "Glasgow" . . "RIV/00216305:26220/02:PU29418" . "2002-09-18+02:00"^^ . "\u010Cl\u00E1nek prezentuje nov\u00FD p\u0159\u00EDstup k modelov\u00E1n\u00ED fokusa\u010Dn\u00ED chyby v DVD p\u0159ehr\u00E1va\u010Di aplikovan\u00FD na pr\u016Fmyslov\u00FD syst\u00E9m, vyvinut\u00FD v laborato\u0159\u00EDch STMicroelectronics. Nejprve jsou navr\u017Eeny dva matematick\u00E9 modely zalo\u017Een\u00E9 na astigmatick\u00E9 metod\u011B a optogeometrick\u00E9 anal\u00FDze. Je t\u00E9\u017E sestaven numerick\u00FD model. N\u00E1sledn\u011B je u\u017Eito prolo\u017Een\u00ED experiment\u00E1ln\u011B z\u00EDskan\u00FDch dat k\u0159ivkou a odhadnuty nezn\u00E1m\u00E9 parametry modelu. Tyto parametry budou n\u00E1sledn\u011B zahrnuty do \u0159\u00EDd\u00EDc\u00ED smy\u010Dky pro zlep\u0161en\u00ED chov\u00E1n\u00ED."@cs . "4"^^ . . . . "Modelling the focus error characteristic of a DVD player" . . "Modelling the focus error characteristic of a DVD player" . . "1"^^ . . "Modelling the focus error characteristic of a DVD player"@en . . .