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  5. Combined direction finding of jammers using randomization of eigenvectors of correlation matrix of the observation and beamformer

Combined direction finding of jammers using randomization of eigenvectors of correlation matrix of the observation and beamformer

V.I. Vasylyshyn
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The strategy variant of combined direction finding of the jammers based on Root-MUSIC method with randomization of the eigenvectors of observation correlation matrix is proposed in the paper. The estimates of jammer angular coordinates of RootMUSIC are obtained with using of the beamformer 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: combined direction finding, eigenvalues, eigenvectors, singular values, singular vectors, subspace leakage, randomization