Kharchenko O. Bases of construction digital filter-correlation analyzers of a spectrum of electrical casual signals with use of narrow-band dynamic filters of the second order

Object of research: process of measurement SDC of electrical random signals with usage filtered of methods and devices of spectral analysis. The purpose of research: digital filtered-correlation spectrum analyser of electrical random ergodic signals executed on the basis of narrow-band digital dynamic filters (NBDF) of the second order. Methods of research: theory of probability and random signals, theory of electrical circuits, methods of optimization, theory of diskrete systems and digital filters. Are designed and are investigated: scientific - methodical and applied bases of construction digital filtered-correlation of spectrum analysers (AS); a bases of the theory of analogue narrow-band dynamic filters in such an AS and methods of optimization of the characteristics NBDF; a bases of the theory digital NBDF; methodical and applied bases of optimum synthesis of the characteristics recursive digital NBDF of the second order; are carried out computer simulation and full-scale tests of a breadboard digital filtered-correlation AS. Novelty: the idealized, methodical and applied bases of construction digital filtered-correlation AS of electrical random ergodic signals with usage of narrow-band digital dynamic filters are designed. The applied in Public Corporation "Motor - Sich", Zaporozhye and ST SDB "Polisvit" PU "Comunar", Kharkiv. An area of usage: scientific - hereinafter development of the theory and practice of a narrow-band digital dynamic filtration for spectral analysis of electrical random signals; practical - at the substantiation metrology and technical characteristics digital filtered-correlation AS.