Research of Dynamic Characteristics in Radio system with Optimal Spatial Structure
S. I. Gusev, Yu. N. Parshin
Ryazan
State Radio Engineering University
Received April
25, 2013, after correction - September 3, 2013
Abstract.
Increasing
of radio-system noise immunity against spatially concentrated interference is
achieved by optimizing the spatial processing which is an amplitude-phase
forming on the array aperture with selection of the optimal spatial element
position. To overcome the difficulties associated with increased optimal
coordinate sensitivity to deviations of estimated non-stationary parameters, a
regularized algorithm of robust spatial structure is used. A comparative
analysis of the spatial processing efficiency in static and dynamic modes is
carried out. High convergence speed of adaptive weight vector adjusting in
spatially reconfigurable antenna arrays is achieved by pre-processing, which means
changing spatial position of antenna array elements.
Keywords: optimization of spatial structure, adaptive
signal-processing, preprocessing.