Temat: phase points - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: On the development of Pontryagins Maximum Principle in the works of A.Ya. Dubovitskii and A.A. Milyutin
Autorzy:: Dmitruk, A. V.
Powiązania:: https://bibliotekanauki.pl/articles/970915.pdf
Data publikacji:: 2009
Wydawca:: Polska Akademia Nauk. Instytut Badań Systemowych PAN
Tematy:: Euler-Lagrange equation
maximum principle
classes of variations
Pontryagin minimum
state constraints
measure in adjoint equation
regular and nonregular mixed constraints
phase points
closure with respect to measure
three-storey theorem
Opis:: We give a short review of the development and generalizations of the Pontryagin Maximum Principle, provided in the studies of Dubovitskii and Milyutin in the 1960s and later years.
Źródło:: Control and Cybernetics; 2009, 38, 4A; 923-957
0324-8569
Pojawia się w:: Control and Cybernetics
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Pseudo-phase mapping of speckle fields using 2D Hilbert transformation
Autorzy:: Zenkova, C. Y.
Gorsky, M. P.
Ryabiy, P. A.
Powiązania:: https://bibliotekanauki.pl/articles/174971.pdf
Data publikacji:: 2016
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:: speckle field
singular points
saddle points
phase problem
Opis:: The use of a "window" 2D Hilbert transform for the reconstruction of the phase distribution of the intensity of a speckle field is proposed. It is shown that the advantage of this approach consists in the invariance of a phase map to a change of the position of the kernel of transformation and in the possibility to reconstruct the structure-forming elements of the skeleton of an optical field, including singular points and saddle points. We demonstrate the possibility to reconstruct the equi-phase lines within a narrow confidence interval, and introduce an additional algorithm for solving the phase problem for random 2D intensity distributions.
Źródło:: Optica Applicata; 2016, 46, 1; 153-162
0078-5466
1899-7015
Pojawia się w:: Optica Applicata
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Different approaches to phase restoration of distant complex optical fields
Autorzy:: Zenkova, C. Y.
Gorsky, M P
Ryabiy, P A
Gruia, I
Powiązania:: https://bibliotekanauki.pl/articles/173605.pdf
Data publikacji:: 2015
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:: phase skeleton
saddle points
gradient lines
Opis:: The paper presents principal approaches to diagnosing the structure forming skeleton of the complex optical field. An analysis of optical field singularity algorithms depending on intensity discretization and image resolution has been carried out. An optimal approach is chosen, which allows to bring much closer the solution of the phase problem of localization of speckle-field special points. A possible approach to diagnosing the signs of zero amplitudes has been offered.
Źródło:: Optica Applicata; 2015, 45, 2; 139-150
0078-5466
1899-7015
Pojawia się w:: Optica Applicata
Dostawca treści:: Biblioteka Nauki

Artykuł

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