The way to use the least-mean-square (LMS) arithmetic to cancel the direct wave for a passive radar system is introduced. The model of the direct wave is deduce
Let P be a property referring to a real matrix. For a sign pattern A, if there exists a real matrix B in the qualitative class of A such that B has property P,
A method of the forward operation of color appearance(from colorimetric attributes to color appearanceattributes)using an artificial neural network(ANN)is prese