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Efficiency of superresolution and separation of multipath signals by digital antenna arrays

Keywords:

L. I. Ponomarev – Dr.Sc. (Eng.), Professor, Department of Radiophysics, Antennas and Microwave Technique, Moscow Aviation Institute (National Research University) A. A. Vasin – Ph.D. (Eng.), Associate Professor, Department of Radiophysics, Antennas and Microwave Technique, Moscow Aviation Institute (National Research University). E-mail: notna_nisav@mail.ru


The aim of the article is to obtain analytical expressions for potential accuracy of superresolution and separation of multipath arbitrarily correlated signals in the linear antenna arrays. Dependence of two signals resolution accuracy on degree of correlation of these signals and the antenna array parameters has been investigated. Simulation of direction finding of multipath signals has been carried out. The derived expressions allow determining minimum error of superresolution of two signals with using of linear antenna arrays consisting of arbitrarily number of elements. They also allow defining dependence of minimal boundary of superresolution on the antenna array parameters and signal and noise conditions.
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