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With regard to the problems of traditional sparse array antenna imaging approach, since azimuth sampling insufficient of echo signal, it will cause poor resolution such as low resolution, serious main lobe expansion and side lobe jamming, 3D imaging approach of sparse array antenna based on compressed sensing is proposed. Based on Linear array antenna mode, sparse banded observer is designed, and...
Under the condition of low sample, how to improve the robustness of adaptive beamforming algorithm is a key problem in engineering application. This article first introduces the minimum variance distrtionless response. On the basis, the algorithm of diagonal loading has been researched and how to select the optimal loading value in the practical application has been emphatically analyzed. Finally,...
In an array of antennas, the inter-antenna electromagnetic mutual coupling, unless properly corrected, would degrade an antenna array's performance in direction finding. In the special case of a uniformly spaced linear array of identical antennas, Azarbar, Dadashzadeh & Bakshi have suggested discarding the antennas' collected data at both ends of the linear array, on the assumption that all middle...
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