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The simulator of navigation signals based on an arbitrary waveform generator has been developed. The algorithm for modulating symbols sequence generation is proposed and method for simulation of single symbol envelope is described. Special software has been developed to simulate navigation signals and control the generator. The simulated navigation signals parameters and the parameters of introduced distortions were measured. The results has shown that proposed method can be used to simulate various global navigation satellite systems signals.

This paper describes the process of developing the software and hardware complex in the programming environment LabVIEW for study and identification of plant operation modes that simulates the real manufacturing process of preparing paper pulp. The specific feature of the developed software complex is its connection with the technological process of the experimental plant by a programming logic controller.