We investigate the problem of detecting the distributed targets buried in the Gaussian noise whose covariance matrix is unknown when signal mismatch occurs. The idea is to add a fictitious signal under the null hypothesis of the origin detection problem so that when signal mismatch occurs. the fictitious signal captures the mismatched signals. thus making the null hypothesis more plau... https://thegreensjunglebeautyshops.shop/product-category/nail-polish/