Abstract
If there is a spread of “parasitic” delays between the elements of the antenna array, more than one fourth of the carrier frequency period, the quality of the reflector image reconstructed by the digital antenna focusing (DAF) method will deteriorate due to non-optimal focusing. The paper proposes a method to take into account the influence of “parasitic” delays between antenna array elements during DFA image reconstruction. Its application allowed to increase the frontal resolving ability of the CFA-image of reflectors approximately twice when using a low-quality antenna array with a range of “parasitic” delays in one period. CFA-images reconstructed taking into account the coherent factor are presented.
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