Method of raising accuracy guiding the antenna device of the radioengineering control complex of the spacecraft

DOI №______

Abstract

In order to determine the requirements for the accuracy of antenna guidance and the probability of errors in receiving microwave and VHF radio signals, the analysis of the influence of nonlinear characteristics of the radio engineering complex on the impedance and throughput of the space vehicle control complex is of particular importance. In this case, the separation of the modes of operation of antenna systems for capture and automatic space tracking will improve the accuracy of the guidance of the radio engineering complex. In the case of a promising satellite radio station, the adaptive variant of the organization of microwave and VHF channel transmission with the compensation of noise caused by nonlinear distortions is the best. To meet the requirements, it is expedient to use the auto-propagation mode with the switching of receivers of the antenna tracking system in the mode of "capture" and "detecting" wide bandwidth, and in the "escort" mode with a narrow bandwidth. An adaptive synchronization algorithm for connecting radio lines is proposed. The generalized functional diagram of the synchronization system for realization of this algorithm is shown. The effectiveness of application of the proposed adaptive algorithm of synchronous radio link is estimated. As a criterion, an integral quality indicator is used ‒ the effective energy price of the unit of information transmission, which allows simultaneous and compact accounting of both precision and dynamic characteristics as well as the energy parameters of synchronization systems. A generalized functional diagram of an adaptive synchronization system that implements the specified algorithm is presented.

Keywords: directional diagram, radioengineering control complex, spacecraft, bandwidth, guidance error, adaptive system.

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