Andreev V.S. 1
Butusov D.N. 1
Karimov T.I. 1
Lipkin S.M. 2
Sotnin M.I. 3
1 Saint-Petersburg State Electrotechnical University
2 South-Russian State Technical University
3 Novgorod State University
The article made of the efficiency of the delta - transformation in the transition from a continuous description of systems of differential equations to discrete form by the example of the different units of the second-order model. The short description the delta-operator is given and ways of equivalent transition from transfer functions in z- and s- form to transfer functions in the delta-form are described. Generalized model of a dynamical system n-th order, described Delta-operator, is realized by method of joint integration. For an assessment the delta-systems in time and frequency domain was used the environment of model design of NI LabVIEW, which has implemented a number of models of transfer functions in the various forms of representation. The simulation results are presented graphically. It is shown that application the delta-transformation and joint integration at calculations with the fixed point allows to raise degree of equivalence of digital and continuous systems.
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