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In the paper, the effectiveness of two types of adaptive detectors of Gaussian coherent signals is compared against the background of Gaussian correlated interference - with coherent and non-coherent integration of output signals of an interference canceller. It is shown that at the maximum likelihood estimation of the adaptive canceller parameters, the detector with non-coherent integration can be not only simpler, but also more effective.

Gaussian processes; adaptive signal detection; interference signal; interference suppression; maximum likelihood estimation