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Information × Registration Number 0221U101059, 0119U100968 , R & D reports Title Development of the theory of ultra wideband active aperture synthesis systems for high-precision remote sensing from high-speed aerospace platforms. popup.stage_title Head Pavlikov Volodymyr V., Доктор технічних наук Registration Date 13-01-2021 Organization National Aerospace University "Kharkiv Aviation Institute" popup.description2  Report on the Scientific work: 125 pages, 24 figures., 81 references. Subject: Statistically optimal methods for synthesis of radio engineering systems with spatially distributed multi-element antennas and ultra-wideband stochastic field processing that are located on high-speed aerospace carriers; methods of spectral aperture synthesis, technical electrodynamics and bootstrapping analysis. Aim: To develop a theory and a basis for technical implementation of the ultra-wideband passive-active radar for high-precision radar mapping of the ground surface in the "blind zone" (from ‒15° to +15° from the nadir) from high-speed aerospace carriers. The interim report for the second stage of work contains the basics of the theory of synthesis of ultra-wideband (UBW) radio technical systems of remote sensing of the earth in the survey area -15 ° to + 15 ° from the nadir, which is not traditionally inspected from aerospace carriers. The solution of the problem is performed in the time domain (formerly in the spectral one), which, despite the complexity of the analytical calculations, further expands the understanding of the method of active synthesis of the antenna aperture. Quasi-optimal algorithms for processing UBW space-time signals are substantiated, which due to the simplification of technical implementation will not significantly reduce the quality of radar image formation. The structural scheme of radar is developed and its simulation modeling is carried out. Considerable attention is paid to the choice of antenna placement geometry in order to achieve high spatial resolution. The necessary radio element base for technical realization of the basic knots and blocks of system is substantiated. RADIOENGINEERING SYSTEMS, EARTH REMOTE SENSING, NEAR ZONE, BROADBAND SIGNALS, GEOMETRY OF RADIO-TECHNICAL SYSTEMS Product Description popup.authors Abramov Oleksandr D. Vasylyshyn Volodymyr I. Vlasenko Dmytro S. Volosiuk Valerii K. Vonsovych Maksym A. Zhyla Semen S. Kosharsky Volodymyr V. Nhuien Van Kh. Odokiyenko Oleksiy V. Pavlikov Volodymyr V. Ruzhentsev Mykola V. Sobkolov Anton D. Tserne Eduard O. Cherepnin Hlib S. popup.nrat_date 2021-01-13 Close