Registration Number
0226U001475,
(0121U100316)
, R & D reports
Title
Ways to resolve the problem of elimination of extraneous solutions in the problems of motion parameter determination and plasma diagnostics by microwave methods
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Проведення багатопараметричного аналізу і оцінювання впливу факторів невизначеності в задачах контролю параметрів об’єктів надвисокочастотними методами.
Head
Zabolotnyi Petro I.,
Registration Date
27-01-2026
Organization
Institute of Technical Mechanics of the National Academy of Sciences of Ukraine and the State Space Agency of Ukraine
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Development of physical foundations for resolving the phase ambiguity problem in three-probe microwave measurements of the displacement of mechanical objects and the linear electron density in plasma and the problem of unambiguous determination of biconical cavity eigenfrequencies by the overlapping domain decomposition method.
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A method is developed for phase ambiguity resolution in three-probe measurements of the displacement of mechanical objects with the aim of unambiguous displacement determination at an arbitrary object reflection coefficient with account for the horn antenna reflection coefficient. The method offers a several-fold decrease in displacement measurement error in comparison with ignoring the horn antenna reflection coefficient. A single- and a two-frequency method are developed for phase ambiguity resolution in three-probe measurements of the linear plasma electron density. A method is developed for actual interprobe distance determination in a waveguide, which offers a many-fold decrease in linear electron density measurement error in comparison with ignoring the variation of the actual interprobe distances from their set values. A method is developed for extraneous solution elimination in biconical cavity eigenfrequency determination by the overlapping domain decomposition method. Methods are developed to account for uncertainty factors in object parameter monitoring problems.
Product Description
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2026-01-27
