Publications 2006 A statistical method of detection and conversion of weak signals

K.Krūmiņš, V.Kārkliņš and V.Plociņš. A statistical method of detection and conversion of weak signals // Automatic Control and Computer Sciences. Allerton Press, Inc.,  2006. Nr.4. pp.15-21.

A statistical method of detection and conversion of weak signals by means of superwideband radar is investigated by means of modeling and analytic calculations. Mono-oscillation of a harmonic signal masked by normally-distributed additive noise is used as the model of a noisy signal. Analytic expressions for engineering calculation of noise at the output of a converter that operates according to both the principle of the classical statistical method and according to a modified statistical method that assures a higher degree of noise suppression are obtained. A comparison of the results of the analytic calculations with modeling results is presented