Dynamic model for research of object transportation location influence on its vibrating loading by moving through a number of single obstacles, road with random microprofile and rough road is offered. Differential equations and methods of their integration in MATLAB Simulink software product are presented. The values of frequencies and amplitudes of vertical oscillations, vibration acceleration of the transportation object at different locations in the vehicle body were obtained.
This paper describes the Matlab simulation results of receiving signals with quadrature modulation, such as OQPSK, using modified phase detector. As the result, the ber-to-snr diagrams were presented for modified and classical detector. The conclusions about its effectiveness were made. There are new methods of modulation signals that allow effective use of the frequency band, and communication systems (eg. trunking) that can effectively distribute the network traffic.