Okhrushchak D. Increasing of accuracy and speed of multicircuit phase tune system

The dissertation is devoted to increase of accuracy and speed of new structures of iterative systems of Phase Locked Loop (PTS) with control on the deviation, combined with scaling correcting devices (SCD). The basic operators of two-circuit and multicircuit iterative systems PTS and control of their movement concerning the controlled value and a phase mistake are received. The analysis of dynamic accuracy of iterative systems PTS on a basis of mistake series expansion on factors of a mistake is carried out. Additional control loop selection technique from a condition of astaticism degree increase of all iterative PTS is offered.The analysis of external disturbance influences on accuracy of iterative PTS is carried out and the way of elimination of influences of these disturbances is offered. The nonlinearity analysis on accuracy and speed is carried out. Ways of nonlinearity compensation are offered. The technique of synthesis of parameters SCD from a condition of compensation of speed in crease at the account of conditions of a physical realizability of operator SCD. The structure of iterative two-circuit speed optimal PTS and research results of the proposed structure are given.Scientific results of dissertational work have found application in the projects of the Ukrainian scientific research institute of telecommunications and are introduced into educational process.