Karimov A.I. 1
Butusov D.N. 1
Platonov S.M. 2
Lavrov S.V. 3
Mandra S.G. 4
1 Saint-Petersburg State Electrotechnical University
2 Novgorod State University
3 Federal State Budget Educational Institution of Higher Professional Education “Voronezh State University of Engineering Technologies”
4 Samara State Technical University
The article describes the use of the delta – transformation in the transition from a continuous description of models of dynamical systems to their discrete form as an example of realization of the digital integrator. The definition of the delta – the operator is given and the methods of work with him are described. On a basis the delta – transformations are received models 16-bit and 32-bit digital integrators. Means of model-based design environment NI LabVIEW evaluated the accuracy of the digital integrator, obtained by the delta – transformations in the integrator, obtained by the z-transform. The graphic results of design of work of the above-described integrators are resulted in the environment of LABVIEW. Conclusions about the accuracy characteristics of models of dynamic systems described by delta – operator are make. Demonstrated the advantage of using delta - transformation to z - transformation of the digital integrator with limited word length.
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