Shyrokov I. Homodyne methods and instruments for measurements of amplitude and phase characteristics of communication links of radio engineering systems

Object - wave processes in communication links of radio engineering systems of different function. Subject - homodyne methods and instruments of measurement of fluctuations of amplitude and phase progression of electromagnetic waves during their distribution over open and closed links of radio engineering systems, and homodyne methods of signal transformation used for the control of parameters of technological processes and in other applications. Aim - to develop the theory and technique of homodyne methods and instruments of analysis of characteristics of communication links of radio engineering systems, to investigate their potential metrological capabilities and to create on this basis new precision and multifunction measuring systems. Methods - spectral analysis, numeric iteration methods, theory of radio-wave propagation in turbulence, probability theory, statistical modelling (Monte-Carlo modelling), acoustics, computer modelling. Results - a concept of homodyne measurement organization for investigation of amplitude and phase characteristics of communication links of radio engineering systems is developed; a theory of homodyne signal transformation in microwave mixer is developed; a concept of synchronization of basic generators in a homodyne measuring system is developed; homodyne methods for investigation of amplitude and phase characteristics of communication links of radio engineering systems are developed. Implementation - at KB Kommutatcionnoy apparatury LTD (Design Bureau of switching equipment), Sevastopol; at Crypto Engineering Company, Zhovti Vody; at Transmag Institute of Transport Systems and Technologies, Dnipropetrovsk; at Red Metal-Worker LLC, Konotop. Application - phase measuring systems