Інтерференційне ослаблення радіолокаційних сигналів від маловисотних цілей

Abstract

The phenomenon of interference attenuation of radar signals from low altitude targets is considered in the article. It is shown that for low-altitude purposes, due to the small angle of the sliding angle of the beam reflected from the earth's surface, there is a practically anti-phase summation (actually subtraction) of the signals of the direct and reflected rays having approximately the same amplitudes. The result is a significant reduction in the range of low-altitude radar surveillance. The calculated relations for estimation of additional signal energy losses in the detection of low-altitude targets are presented. A simple technique for taking into account interference processes in specific radar surveillance conditions is proposed.