Open AccessInformation technologies for creating spatiotemporal modems multiposition active-passive radar systems
Author(s) -
А. О. Жуков,
Evgeniy G. Zhilyakov,
Ivan Oleynik,
S G Orishchuk,
P A Fedorov,
Igor Kartsan
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2094/2/022005
Subject(s) - radar , orthogonalization , computer science , antenna (radio) , passive radar , electronic engineering , signal (programming language) , remote sensing , radar imaging , computer vision , continuous wave radar , telecommunications , algorithm , engineering , geography , programming language
The methods of synthesis of the directional diagram of active transmitting antenna arrays when receiving signals reflected from radar targets are considered. It is shown that when using multifrequency orthogonal coherent signals in the elements and addressable access at their reception it is possible to provide a small level of the side lobes of the spatial uncertainty function in a given sector of observation by selecting the type of intrapulse modulation of partial signals. Orthogonalization of antenna basis of transmitting and receiving antennas allows digital spectral-correlation processing of samples of aggregate signal from each target to solve the technological problem of multidimensional observation space in multiposition systems of coherent radiolocation when detecting, resolving, estimating coordinates and motion parameters of targets. The results of simulation modeling of spatio-temporal radar modems implemented according to the stated principles are given.