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Information × Registration Number 0221U106530, 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 13-12-2021 Organization National Aerospace University "Kharkiv Aviation Institute" popup.description2 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 final report of the work contains the method of algorithms synthesis for radar signal processing that allows to form a radio image in the field of view ± 20 ° from the nadir direction. The solution of the problem is performed simultaneously for operation in active-passive and passive complex operation modes that allows to obtain a radio image proportional to both the specific effective surface scattering of the underlying surface and its effective temperature. A new wideband criterion is proposed. The problem of Earth radio monitoring algorithms synthesis in a wide area of survey from aerospace transport is solved. According to the obtained algorithms, the structural scheme of the radio complex is developed and tested by the method of simulation modeling, which can work simultaneously in two modes: synthetic-aperture and aperture synthesis. Much attention is paid to the problem of reducing anomalous estimates by spectral analysis (SA) based on the classification of polynomial roots of SA methods. A mock-up of the active aperture synthesis system is being implemented, the efficiency of which is being checked in a moonless chamber. Product Description popup.authors Abramov Oleksandr D. BIELOUSOV KOSTIANTYN G. Vasylyshyn Volodymyr Ivanovych Vlasenko Dmytro S. Volosiuk Valerii K Vonsovych Maksym A. Zhyla Semen S. Kosharsky Volodymyr V. Odokiienko Oleksii V. Popov Anatolii V. Radchenko Vlada V. Ruzhentsev Mykola V. Sobkolov Anton D. Tserne Eduard O. Cherepnin Glib S. popup.nrat_date 2021-12-13 Close