Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

English (EN)·Polski (PL)·Yкраїнський (UK)
Przejdź do strony domowej biblioteki Centralna Biblioteka Wojskowa Link otwiera się w nowym oknie Logo biblioteki Prolib Integro - strona głównaCentralna Biblioteka Wojskowa

Wyszukujesz frazę "walsh function" wg kryterium: Temat

  Lista filtrów
Wyrównaj
    Wyświetlanie 1-11 z 11
    Tytuł:
    Automatic "sewing together" of REM-images with the use of Walsh descriptors
    Automatyczne "zszywanie" obrazów REM z użyciem wskaźników Walsha
    Autorzy:
    Melnyk, V. M.
    Voloshyn, V. U.
    Voloshyna, T. V.
    Powiązania:
    https://bibliotekanauki.pl/articles/129907.pdf
    Data publikacji:
    2001
    Wydawca:
    Stowarzyszenie Geodetów Polskich
    Tematy:
    obraz REM
    wskaźniki Walsha
    segmentacja obrazów
    funkcja celu
    REM image
    Walsh descriptors
    image segmentation
    goal function
    Opis:
    The article deals with the automatic method of "sewing together" the superimposed REM-images based on the identification of the boundaries of their particularities. The evaluation of a similarity of the form is fulfilled with the use of Walsh descriptors and is used as a key information with a discernment of conjugate areas. The frequency representation of the boundaries allows to determine parameters of optimum transformation of particularities of one image to another. The procedure of identification of an apart from the factor of a similarity of the form, takes into account orientations coherence of the identified areas. The results of a model experiment confirm the effectiveness of a method application.
    Źródło:
    Archiwum Fotogrametrii, Kartografii i Teledetekcji; 2001, 11; 5-19-5-26
    2083-2214
    2391-9477
    Pojawia się w:
    Archiwum Fotogrametrii, Kartografii i Teledetekcji
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Construction of Generalized Rademacher Functions in Terms of Ternary Logic : Solving the Problem of Visibility of Using Galois Fields for Digital Signal Processing
    Autorzy:
    Vitulyova, Elizaveta S.
    Matrassulova, Dinara K.
    Suleimenov, Ibragim E.
    Powiązania:
    https://bibliotekanauki.pl/articles/2055235.pdf
    Data publikacji:
    2022
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    digital signal processing
    non-binary Galois fields
    fourier transform
    rademacher functions
    walsh function
    multivalued logic
    visibility problem
    algebraic extensions
    ternary representation of number
    Opis:
    Generalized Rademacher functions, constructed as a sequence of elements of Galois fields are intended to find the spectral representation of signals with levels. These functions form a complete basis on the interval corresponding to -1 discrete time intervals and for passing into the classical Rademacher functions. The advantage of such spectra obtained using Galois Fields Fourier Transform is that the range of variation of the spectrum amplitudes remains the same as the range of variation of the original signal, which is modeled on discrete time functions taking values in the Galois field.
    Źródło:
    International Journal of Electronics and Telecommunications; 2022, 68, 2; 237--244
    2300-1933
    Pojawia się w:
    International Journal of Electronics and Telecommunications
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Dedicated spectral method of Boolean function decomposition
    Autorzy:
    Porwik, P.
    Stanković, R. S.
    Powiązania:
    https://bibliotekanauki.pl/articles/908408.pdf
    Data publikacji:
    2006
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    funkcja boolowska
    dekompozycja rozłączna
    spektrum Walsha
    współczynnik autokorelacji
    Boolean function
    Walsh spectrum
    autocorrelation coefficients
    disjoint decomposition
    Opis:
    Spectral methods constitute a useful tool in the analysis and synthesis of Boolean functions, especially in cases when other methods reduce to brute-force search procedures. There is renewed interest in the application of spectral methods in this area, which extends also to the closely connected concept of the autocorrelation function, for which spectral methods provide fast calculation algorithms. This paper discusses the problem of spectral decomposition of Boolean functions using the Walsh transform and autocorrelation characteristics.
    Źródło:
    International Journal of Applied Mathematics and Computer Science; 2006, 16, 2; 271-278
    1641-876X
    2083-8492
    Pojawia się w:
    International Journal of Applied Mathematics and Computer Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Efficient Calculation of the Reed-Muller Form by Means of the Walsh Transform
    Autorzy:
    Porwik, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/908505.pdf
    Data publikacji:
    2002
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    informatyka
    Reed-Muller coefficients
    Walsh coefficients
    coefficient distribution
    Boolean function
    synthesis of Boolean functions
    Opis:
    The paper describes a spectral method for combinational logic synthesis using the Walsh transform and the Reed-Muller form. A new algorithm is presented that allows us to obtain the mixed polarity Reed-Muller expansion of Boolean functions. The most popular minimisation (sub-minimisation) criterion of the Reed-Muller form is obtained by the exhaustive search of all the polarity vectors. This paper presents a non-exhaustive method for Reed-Muller expansions. The new method allows us to build the Reed-Muller form based on the analysis of Walsh-Hadamard coefficients. The presented method has much less complexity than the procedures which have been applied until now. Both the transforms and the presented Walsh-Hadamard spectral characterization of the Reed-Muller expansion are compared. An analysis of the properties of the spectra obtained from these transforms is made.
    Źródło:
    International Journal of Applied Mathematics and Computer Science; 2002, 12, 4; 571-579
    1641-876X
    2083-8492
    Pojawia się w:
    International Journal of Applied Mathematics and Computer Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Efficient spectral method of identification of linear Boolean function
    Autorzy:
    Porwik, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/970438.pdf
    Data publikacji:
    2004
    Wydawca:
    Polska Akademia Nauk. Instytut Badań Systemowych PAN
    Tematy:
    linear Boolean function
    Walsh coefficients
    coefficients distribution
    incompletely defined Boolean functions
    współczynnik Walsha
    rozkład współczynników
    niekompletnie zdefiniowana funkcja Boole'a
    liniowa funkcja Boole'a
    Opis:
    This paper discusses a problem of recognition of the Boolean function's linearity. The article describes the spectral method of analysis of incompletely specified Boolean functions using the Walsh Transform. The linearity and nonlinearity play an important role in design of digital circuits. The analysis of the spectral coefficients' distribution allows to determine the various combinatorial properties of the Boolean functions: redundancy, monotonicity, self-duality, correcting capability, etc. which seems to be more difficult to obtain by means of other methods. In particular, the distribution of spectral coefficients allows us to determine whether Boolean function is linear. The method described in the paper can be easily used in investigations of large Boolean functions (of many variables), what seems to be very attractive for modern digital technologies. Experimental results demonstrate the efficiency of the approach.
    Źródło:
    Control and Cybernetics; 2004, 33, 4; 663-678
    0324-8569
    Pojawia się w:
    Control and Cybernetics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Identity principles for Bernstein quasianalytic functions
    Autorzy:
    Pleśniak, Wiesław
    Powiązania:
    https://bibliotekanauki.pl/articles/744937.pdf
    Data publikacji:
    2013
    Wydawca:
    Polskie Towarzystwo Matematyczne
    Tematy:
    Bernstein quasianalytic functions, Bernstein-Walsh inequality, Siciak extremal function, Zakharyuta-Siciak theorem, Bedford-Taylor pluripotential theory
    Opis:
    We prove an identity principle for Bernstein quasianalytic functions on plane continua and study its extensions to the multivariate case.
    Źródło:
    Commentationes Mathematicae; 2013, 53, 2
    0373-8299
    Pojawia się w:
    Commentationes Mathematicae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Nonlinearity of incomplete Boolean functions: prioritizing spectra calculation
    Autorzy:
    Porwik, Piotr
    Powiązania:
    https://bibliotekanauki.pl/articles/2175117.pdf
    Data publikacji:
    2022
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    Boolean function
    numerical methods
    Walsh transform
    Opis:
    In this paper, a class of linear Boolean functions is analyzed. The Boolean function can be represented as disjoint cubes or in the form of a truth vector. The primary purpose of this analysis is to decide whether an incompletely defined function can be extended to a complete linear form. A simple algorithm for generating all states of this function has been proposed if the Boolean function can have a full representation. The algorithm is beneficial for large functions. The proposed approach can be applied to completely and incompletely defined Boolean functions.
    Źródło:
    Archives of Control Sciences; 2022, 32, 4; 663--676
    1230-2384
    Pojawia się w:
    Archives of Control Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Polynomial approximation of regular functions of a quaternionic variable
    Autorzy:
    Szczepański, Jerzy
    Powiązania:
    https://bibliotekanauki.pl/articles/29521112.pdf
    Data publikacji:
    2022
    Wydawca:
    Akademia Tarnowska
    Tematy:
    quaternionic regular functions
    polynomial approximation
    Bernstein-Walsh-Siciak theorem
    Bernstein-Markov condition
    polynomial extremal function
    Bernstein-Walsh inequality
    czwartorzędowe funkcje regularne
    aproksymacja wielomianowa
    twierdzenie Bernsteina-Walsha-Siciaka
    warunek Bernsteina-Markowa
    funkcja ekstremalna wielomianu
    nierówność Bernsteina-Walsha
    Opis:
    We consider Bernstein-Walsh-Siciak-type theorems on the polynomial approximation in the case of regular functions of one quaternionic variable and their applications to the uniform approximation and approximation in $ L^p $ norms with respect to measures satisfying the Bernstein-Markov condition.
    Źródło:
    Science, Technology and Innovation; 2022, 16, 3-4; 28-41
    2544-9125
    Pojawia się w:
    Science, Technology and Innovation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Polynomial inequalities on algebraic sets
    Autorzy:
    Baran, M.
    Pleśniak, W.
    Powiązania:
    https://bibliotekanauki.pl/articles/1206008.pdf
    Data publikacji:
    2000
    Wydawca:
    Polska Akademia Nauk. Instytut Matematyczny PAN
    Tematy:
    Bernstein-Walsh and tangential Markov type inequalities on algebraic sets
    pluricomplex Green function
    traces of polynomials on algebraic sets
    Siciak's extremal function
    Opis:
    We give an estimate of Siciak's extremal function for compact subsets of algebraic varieties in $ℂ^n$ (resp. $ℝ^n$). As an application we obtain Bernstein-Walsh and tangential Markov type inequalities for (the traces of) polynomials on algebraic sets.
    Źródło:
    Studia Mathematica; 2000, 141, 3; 209-219
    0039-3223
    Pojawia się w:
    Studia Mathematica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Some classical function systems in separable Orlicz spaces
    Autorzy:
    Finet, C.
    Tkebuchava, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/1221051.pdf
    Data publikacji:
    1996
    Wydawca:
    Polska Akademia Nauk. Instytut Matematyczny PAN
    Tematy:
    Fourier
    Fourier-Walsh series
    Paley function
    Haar system
    separable Orlicz space
    Opis:
    The boundedness of (sub)sequences of partial Fourier and Fourier-Walsh sums in subspaces of separable Orlicz spaces is studied. The boundedness of the shift operator and Paley function with respect to the Haar system is also investigated. These results are applied to get the analogues of the classical theorems on basicness of the trigonometric and Walsh systems in nonreflexive separable Orlicz spaces.
    Źródło:
    Studia Mathematica; 1996, 121, 2; 193-205
    0039-3223
    Pojawia się w:
    Studia Mathematica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Spectral Test of the Boolean Function Linearity
    Autorzy:
    Porwik, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/908085.pdf
    Data publikacji:
    2003
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    informatyka
    Walsh coefficients
    coefficient distribution
    Boolean function
    bent functions
    linearity measure of a Boolean function
    Opis:
    The paper discusses the problem of recognizing the Boolean function linearity. A spectral method of the analysis of Boolean functions using the Walsh transform is described. Linearity and nonlinearity play important roles in the design of digital circuits. The analysis of the distribution of spectral coefficients allows us to determine various combinatorial properties of Boolean functions, such as redundancy, monotonicity, self-duality, correcting capability, etc., which seems more difficult be performed by means of other methods. In particular, the basic synthesis method described in the paper allows us to compute the spectral coefficients in an iterative manner. The method can be easily used in investigations of large Boolean functions (of many variables), which seems very attractive for modern digital technologies. Experimental results demonstrate the efficiency of the approach.
    Źródło:
    International Journal of Applied Mathematics and Computer Science; 2003, 13, 4; 567-575
    1641-876X
    2083-8492
    Pojawia się w:
    International Journal of Applied Mathematics and Computer Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-11 z 11

      Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies