Abstract:This study addresses the narrowband signal detection with unknown frequency, direction of arrival, complex amplitude and noise variance. The authors find a separating function (SF) using the maximal invariant of induced group of transformations. Then three separating function estimation tests (SFETs) are proposed which called SFET 1 , SFET 2 and SFET 3 . It is shown that the SFET 1 using the maximum likelihood estimation (MLE) of SF is equal to the generalised likelihood ratio test. The SFET 2 and SFET 3 are p… Show more
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