Abstract
Radio holographic system based on retrodirective multiple antenna arrays with re-emission and recirculation of orthogonal signals in spatial feedback rings is considered. A generalized ambiguity function is constructed for an ensemble of orthogonal signals, taking into account the partial transmission coefficients of feedback rings. The spatial resolution characteristics for a short-range retrodirective radar system using MIMO antenna arrays in the microwave range are studied. The results of calculation and comparison for two-dimensional cross sections of the generalized ambiguity functions in the presence and in the absence of recirculation of sounding signals are presented. The super resolution effect is found in a radio holography system based on retrodirective MIMO antenna arrays with spatial recirculation of orthogonal signals.
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