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  5. Combined direction finding of jammers using pseudo-noise resampling

Combined direction finding of jammers using pseudo-noise resampling

V.I. Vasylyshyn
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The strategy variant of combined direction finding of the jammers based on modified unitary Root-MUSIC method with resampling by adding of pseudo-noise is proposed in the paper. The estimates of jammer angular coordinates of modified unitary Root-MUSIC when using pseudo-noise resampling are obtained with using the beamformer and analysis of closeness of polynomial roots to unit circumference in order to reduce the number of abnormal estimates (outliers). The improvement of accuracy of jammer direction finding in the area of threshold signal-to-noise ratio and limited volume of learning sample is confirmed by simulations.
Keywords: estimator bank, eigenvalues, eigenvectors, singular values, singular vectors, subspace leakage, pseudosample