The norm constraint IQML beamforming algorithm for wideband and coherent jammers suppression
نویسندگان
چکیده
ABSTRAC'I In this paper, a new narrowband beamformer with derivative constraint is developed for wideband and coherent jammers suppression. The so-called IQML algorithm [6] used to estimate the uttaown directions of the jammers in signal-free environment is hown to be an inappropriate constraint estimator. In this paper, a new IQML algorithm with a norm constraint is a consistent estimator and can achieve better performance. We show that it outperforms the approach with the linear constraint [6] used in the narrowband beamformer, in terms of flat nulls, output SMR and nulling capability for wideband and coherent jammers suppression.
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تاریخ انتشار 2002