The paper considers the application of the computational approach to the structure spectral analysis of GERT-network models of mobile object monitoring systems. The structure of the system for monitoring mobile objects using satellite communication channels is presented, in particular, the structure of the system for monitoring the flight path of aircraft. It is shown that the structure of monitoring systems can be represented as a GERT-network model, which allows at the initial stage to consider various options for the formation of interaction between a mobile object, for example, a manned or unmanned aerial vehicle, and a ground control complex. The main idea of the approach is to transform a known graph into a graph with the desired spectrum, which corresponds to a valid implementation of the GERT network graph. Obviously, the set of admissible implementations also includes a graph with the maximum probability of completing the process in a given time. The results are presented, which allow, when analyzing the GERT-network structure of a monitoring system, to assess, by fairly simple methods, the compliance of a structure variant with a number of requirements that apply to the system as a whole.
The paper considers the application of the computational analysis of data transmission models in satellite systems for aircraft trajectory control. A system for monitoring the trajectory of aircraft using satellite communication systems Iridium and Inmarsat is presented. The scheme of communication between the aircraft board and the control tower takes into account the peculiarities of extreme conditions typical for the Arctic and the Far North. An example of calculating the probability of code combination transformations for an asymmetric channel with independent errors is considered. In this case, the calculations follow the provisions of the theorems of probability theory. Modeled data rates for satellite communication systems Iridium and Inmarsat. It is concluded that the Iridium and Inmarsat systems have a high data transfer rate and a low error rate, and their use as communication systems for transmitting data from an aircraft to an air traffic control center is justified.
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