O. S. Litvinov - Dr.Sc. (Phys.-Math.), Professor, Department of Physics, Bauman Moscow State Technical University. E-mail: oleglitv@mtu-net.ru A. P. Ivantsov - Senior Programmer, Kivi Company. E-mail: alexivanc@mail.ru A. V. Ter-Oganisyan - Head of Department, Alpari Company. E-mail: ter.hov.ars@gmail.com

The article deals with the question of determining the optimal location of adaptive modules on the phased antenna arrays aperture. The considered questions includes adaptive antenna arrays (AAR) in which only part of the receiving elements are connected to the controlled attenuators and phase shifters. Such AAR enters in class of partially adaptive antennas arrays (PAR) which includes also in particular the so-called compensation type of the adaptive antennas. As a criterion for adaptive interference suppression there was selected a criterion of maximum ratio of desired signal power to total noise power at the output of the antenna array. The total noise power includes the rest of the suppressed interferences and own AAR noise . During determining the effective displacement and configuration of adaptive mod-ules on the PAR aperture there is used a complex optimization criterion which takes into account both the possible reduction of the useful signal and the depth of interference cancellation at the output PAR for various scenarios of the interferences environment in the space around the antenna. In particularly there are considered several simultaneously operating both wideband and narrowband interference. In addition, in this article it is considered the action of the interference sources continuously distributed within a certain angle sector in space around the PAR. Studies conducted in the article are based on mathematical modeling of noise reduction in compensation and par-tially adaptive antennas. Moreover this article contains comparison of the average noise interferences reduction characteristics for differ-ent configurations and displacements of adaptive elements on the antenna array aperture.

 

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