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Subject: search.filters.subject.Bilinear transform

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    Closed-form formulas for continuous/discrete-time pidaj controller's parameters
    (2019-07-01)
    Ukakimaparn, Prapart
    ;
    Tirasesth, Kitti
    ;
    Trisuwannawat, Thanit
    ;
    Pannil, Pittaya
    This paper focuses on establishing the closed-form formulas to design a proportional-integral-derivative-acceleration-jerk (PIDAJ) controller for fourth-order pla- nts. After plant modeling, the analog PIDAJ controller in continuous-time domain can be designed by utilizing the proposed formulas in a vector-matrix form. Based on bilinear transform, the digital PIDAJ controller in discrete-time domain can then be achieved. The use of the proposed formulas to determine the PIDAJ controller's parameters for controlling the air-fuel ratio of an engine is described as an application example to con- _rm their feasibility. MATLAB simulation results con_rm the consistency between step responses of the example system controlled by the designed controllers in continuous-time domain and discrete-time domain.
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    Equalization of the distorted chrominance signal using IIR digital filter with the bernstein filter
    (2005-01-01)
    Chutchavong, V.
    ;
    Janchitrapongvej, K.
    ;
    Pirajnanchai, V.
    In this paper, we present the use of the Bernstein Polynomials to obtain an IIR digital filter transfer function, which can be applied to video equalizer for compensating the amplitude of chrominance signal in color television. In addition, experimental results are carried out by using the modulated 20T sine squared signal on the color sub carrier 4.43 MHz. It is shown here that the proposed equalizer can either enhance or compress the chrominance signal in color television transmission.
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