Adaptive Linearly Constrained Beamforming Algorithms for Smart Jamming Suppression
To suppress the smart jamming efficiently, in this paper, array beamforming algorithms, based on direct linearly constrained as well as the so-called Generalized Sidelobe Canceller (GSC) structures, are addressed. The performance comparison between different structures with variety adaptation algorithms is emphasized. Especially, we will focus on the capability of smart jamming suppression with the modified conjugate gradient algorithm, which is one of the conjugate direction techniques, in such environments when the pointing error is existed. The merits of different constrained algorithms are verified by evaluating the performance, in terms of the output signal-to-interference ratio (SINR) to investigate the convergence property and beampatterns to verify the nulling capability.
KeywordsMicrowave Radar Expense Autocorrelation Azimuth
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