DISCRETE APPROXIMATION OF CONTINUOUS OBJECTS WITH MATLAB
نویسندگان
چکیده
This work is dedicated to the study of various discrete approximation methods for continuous links, which obligatory step in digital control systems synthesis dynamic objects and guidelines development performing these opera tions using MATLAB programming system. The paper investigates such sampling as pulse-, step-, linearly invariant Z-transformations, substitution based on usage numerical integration zero-pole correspond ence method. presents examples symbolic instruments perform tions, offers an m-function improved version discretization by correspondence method, allows this method approach step-invariant Z-transformations; programs form have been developed, comparative analysis sys tems synthesized with their help quantization period influence accuracy analytical methods. A compari son transfer functions obtained different corresponding reactions time signals per formed. Using developed it determined that pulse-invariant Z-transformation can be used only when input a object receives pulse signals, linear-invariant transformation should intermittent at input. also algorithm applying Tustin corresponds replacement analogue inte gration trapezoidal It shown most suitable first-order regulators output signal limitation. article considers shows has highest among rough approximation. Based performed research, recommendations use are given.
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ژورنال
عنوان ژورنال: Applied aspects of information technologies
سال: 2021
ISSN: ['2617-4316', '2663-7723']
DOI: https://doi.org/10.15276/aait.02.2021.5