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    Wyświetlanie 1-4 z 4
    Tytuł:
    Residue number system (RNS)
    Autorzy:
    Sharoun, A. O.
    Powiązania:
    https://bibliotekanauki.pl/articles/376029.pdf
    Data publikacji:
    2013
    Wydawca:
    Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
    Tematy:
    residue number system
    RNS
    residue arithmetic
    Opis:
    In the residue number system, a set of moduli which are independent of each other is given. An integer is represented by the residue of each modulus and the arithmetic operations are based on the residues individually. The arithmetic operations based on residue number system can be performed on various moduli independently to avoid the carry in addition, subtraction and multiplication, which is usually time consuming. However, the comparison and division are more complicated and the fraction number computation is immatured. Due to this, a residue number system is not yet popular in general-purpose computers, though it is extremely useful for digital-signal-processing applications. This thesis deals with the design, simulation and microcontroller implementation of some (residue number system based) building blocks for applications in the field of digital signal processing. The building blocks which have been studied are binary to residue converter, residue to binary converter, residue adder and residue multiplier.
    Źródło:
    Poznan University of Technology Academic Journals. Electrical Engineering; 2013, 76; 265-270
    1897-0737
    Pojawia się w:
    Poznan University of Technology Academic Journals. Electrical Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Pipelined division of signed numbers with the use of residue arithmetic for small number range with the programmable gate array
    Autorzy:
    Smyk, R.
    Ulman, Z.
    Czyżak, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/376378.pdf
    Data publikacji:
    2013
    Wydawca:
    Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
    Tematy:
    pipelining
    residue number system
    RNS
    residue arithmetic
    Opis:
    In this work an architecture of the pipelined signed residue divider for the small number range is presented. Its operation is based on reciprocal calculation and multiplication by the dividend. The divisor in the signed binary form is used to compute the approximated reciprocal in the residue form by the table look-up. In order to limit the look-up table address an algoritm based on segmentation of the divisor into two segments is used. The approximate reciprocal transformed to residue representation with the proper sign is stored in look-up tables. During operation it is multiplied by the dividend in the residue form and subsequently scaled. The pipelined realization of the divider in the FPGA environment is also shown.
    Źródło:
    Poznan University of Technology Academic Journals. Electrical Engineering; 2013, 76; 117-126
    1897-0737
    Pojawia się w:
    Poznan University of Technology Academic Journals. Electrical Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    An interval difference method for solving the wave equation
    Autorzy:
    Szyszka, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/378277.pdf
    Data publikacji:
    2012
    Wydawca:
    Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
    Tematy:
    wave equation
    difference interval method
    interval method
    floating point interval arithmetic
    Opis:
    In the paper a difference interval method for solving the wave equation together the initial-boundary value problems is presented. Using an interval method together floating-point interval arithmetic guarantee, that obtained interval solutions contain all numerical errors. Additionally, each exact solution is included into interval solution. In numerical experiments it is guarantee contain all numerical errors in obtained interval solutions. Taken into consideration is the central discretization method with regard to space and time. An initial condition is approximated by the third-order Taylor polynomial with local truncation error of order 0(h4). In the paper new formula, which described discretization of the initial condition, is proposed. Therefore more exact solutions are obtained then in the previous considerations.
    Źródło:
    Poznan University of Technology Academic Journals. Electrical Engineering; 2012, 69; 161-168
    1897-0737
    Pojawia się w:
    Poznan University of Technology Academic Journals. Electrical Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Scaling of numbers in residue arithmetic with the flexible selection of scaling factor
    Autorzy:
    Ulman, Z.
    Czyżak, M.
    Smyk, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/376813.pdf
    Data publikacji:
    2013
    Wydawca:
    Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
    Tematy:
    scaling technique
    scaling factor
    residue arithmetic
    Residue Number System
    RNS
    Mixed-Radix System
    MRS
    Opis:
    A scaling technique of numbers in residue arithmetic with the flexible selection of the scaling factor is presented. The required scaling factor can be selected from the set of moduli products of the Residue Number System (RNS) base. By permutation of moduli of the number system base it is possible to create many auxiliary Mixed-Radix Systems (MRS). They serve as the intermediate systems in the scaling process. All MRS's are associated with the given RNS with respect to the base, but they have different sets of weights. For the scaling factor value resulting from the requirements of the given signal processing algorithm, the suitable MRS can be chosen that allows to obtain the scaling result in most simple manner.
    Źródło:
    Poznan University of Technology Academic Journals. Electrical Engineering; 2013, 76; 175-179
    1897-0737
    Pojawia się w:
    Poznan University of Technology Academic Journals. Electrical Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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