Robust Adaptive Monopulse Beamforming with Low-Sidelobes
Manuel F. Fernandez, Kai‐Bor Yu · 2019
Adaptive monopulse processing involves simultaneously synthesizing the sum and difference beam patterns so that a specified monopulse slope is achieved after adaptation. Such approach involves adapting the sum and difference beams so that the patterns are maintained in a selected number of constraint points based on the linear assumption of the monopulse ratio curve (MRC). This paper extends this technique adding some robust features such as low-sidelobes, addresses the signal cancellation issues and relaxes the linear assumption of the MRC in addition to cancelling jamming and maintaining the monopulse beam patterns for target angle estimation. Simulation is used to evaluate the robustness of this technique for sidelobe and skirt jammers with respect to the number of principal eigenvectors used for mainlobe maintenance.