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In this paper we analyze the shape reproduction errors of continuous spectrum of random Gaussian process (particularly, echo signals from meteorological formations in pulse Doppler weather radar) using various spectral estimation (SE) methods in “adaptive” situation when a priori unknown covariance matrix (CM) is replaced with its estimates of different kind. We also show the significant robustness...
The convergence rate of a number of adaptive processing algorithms for coherent signal extraction from Gaussian interference is compared. Our main attention is paid to a relatively new hybrid method of regularization of the maximum-likelihood estimate (MLE) of the covariance matrix (CM) of Gaussian vectors with discrete and continuous power spectra. Relatively high convergence rate and efficient lattice-filter-based...
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