DEVELOPMENT OF SIGNAL PROCESSING MODELS IN DOMESTIC ENVIRONMENTS OF MATHEMATICAL MODELING

The paper considers the domestic SimInTech and Engine mathematical modeling environments offered as an alternative to the widely used foreign MATLAB environment. The analysis of the environments is carried out, the possibilities and features of each of them are given. In order to demonstrate how applications work “Design and analysis of digital filters” of the SimInTech environment and the “Digital Filter Editor” of the Engee environment, a Hamming low-pass filter was synthesized. Some characteristics of the filter are presented: amplitude-frequency response (AFC), phase-frequency response (FCH), pulse response (IM), group delay time (GVZ), zero-pole diagram. To demonstrate the model-oriented design of the Engee environment, an ICM codec model was built. Time diagrams of the initial and final speech signals are presented.