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Optimal Monopulse Beamforming for Side-Looking Airborne Radars
The synthesis of the optimal excitations of the sum and the difference patterns in planar active electronically scanned arrays (AESAs) for side-looking airborne monopulse radar systems is addressed. Under the assumption that each array element is equipped with a single transmit receive module (TRM), which is shared among all patterns, the complex (amplitude and phase) TRM coefficients are optimized with a customized convex programming procedure to yield a sum beam with maximum directivity and difference beams with maximum slope along the boresight direction as well as asymmetric sidelobes envelope for noise suppression from half-space. Representative results from a synthesized AESA devoted to a real airborne application are illustrated and discussed to give some insights to the interested readers on the features and the potentialities of the proposed synthesis approach.
Gottardi Giorgio, Poli Lorenzo, Rocca Paolo, Montanari Alessandro, Aprile Angelo, Massa Andrea
Paper for Specialistic Magazine
IEEE Antennas and Wireless Propagation Letters
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