| Summary: | Background. Ensuring the stability of information and control systems in the
transition mode by antenna matching devices, which are multi-connected control objects,
is a difficult task. It is necessary to conduct research on the choice of the
matching device type, the synthesis of the meters and sensors used the places where
they are connected, and the development of a control algorithm that ensures the system’s
stability. The purpose of the research is to ensure the stability of the control
system by developing an algorithm with Autonomous (separate) control of configuration
elements.
Materials and methods. The antenna-matching-device-based information and
control system with centered tuning elements is an object of research. The subject of
research is the control algorithm and its mathematical support. The method of circular
diagrams of resistances and conductivities in a Cartesian coordinate system from
the theory of functions of complex variables and the method of studying functions
on an extremum from mathematical analysis are used.
Results. Developed algorithm and software of information control system of the
discrete antenna-matching unit with the centered parameters of the tuning elements,
ensuring stability of the whole control system through autonomy settings for individual
elements.
Conclusions. The mathematical expression needed for design and operation of
antenna-matching-device-based information and control system, to determine based
on the values of the coefficient of a traveling wave in the antenna feeder, the current,
minimum and maximum values of the tuning elements of the matching device
at the operating frequency of the radio station.
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