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Author: search.filters.author.Pirajnanchai, ViroteSubject: search.filters.subject.Bessel polynomials

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    Item type:Publication,
    Modification of data transmission filter with generalized bessel transformation
    (2010-12-01)
    Pirajnanchai, Virote
    ;
    Chutchavong, Vanvisa
    ;
    Janchitrapongvej, Kanok
    This paper present modification of data transmission filter by the application of Generalized Bessel transformations with rational filter. The technique gives the denominator of filter transfer function in analytic closed form, while its numerator is determined by solving a set of transmission zeros and even polynomial of order. The results to filter is straightforward and will be given in a later more detailed contribution together with comparison with the other existing design methods, such a comparison reveals the superiority of the present technique. ©ICROS.
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    The modifications of low pass filter responses by the generalized bessel transformation with equal-ripple attenuation in the stopband
    (2009-01-01)
    Pirajnanchai, Virote
    ;
    Songthnapitak, Numyoot
    ;
    Janchitrapongvej, Kanok
    In this paper modification of low-pass filter responses by the application of Generalized Bessel transformations with equal-ripple attenuation in the stopband. A function has been developed which enable filter designs to place the flattest portion of the magnitude curve at a frequency in the passband other than ω = 0. In comparison with Maximally Fate Delay (MFD), these filters have steeper slops at cutoff and provide more high-frequency attenuation.