Lyzanets V. Analys and syntesis of invariant amplify-conversion systems for info-communication equipment

The object of research: processes of reproduction and amplification using multiple modulation. The subject: key invariant amplify-conversion of modulation type. The thesis is dedicated to development of the construction theory for invariant amplification-conversion systems with a multiple modulation and given characteristics of functioning. The analysis of functional and dynamic potentialities of amplification-conversion systems with a multiple modulation by compensation of coordinate-parametric perturbing effects is carried out. The methodological approach to obtain conditions of invariance is grounded and the statements concerning structural invariance of the amplification-conversion systems is formulated. On the basis of research results the effective algorithms of adaptive coordinate-parametric control for amplification-conversion systems with a multiple modulation are proposed. They provide lag-free and independent regulation of output coordinates of the systems at program level. Different variants for organizations of multifunctional invariant amplification-conversion systems and control algorithms are given. The structural organization and algorithm for adaptive control of invariant amplification-conversion systems are developed. They give a possibility to balance nonlinearity of controlled entities under indeterminate conditions.