Simulation of Acconting for the Impact of Ground Clutter on the Calculation of Hazard Index of the Degree of Danger of Clouds in the On-Board Pulse Doppler Weather Radar

When assessing the danger of clouds, the degree of their importance is associated with the power of the signals reflected from them. For small aircraft flying at low altitude, the level of reflected signals from the underlying earth's surface, which come from the side lobes of the antenna pattern, is also high. They can appear on the radar indicator in the form of false images of clouds or overestimate the degree of danger of clouds on the flight path. In order to evaluate this effect, it is necessary to create a mathematical model that takes into account the flight parameters, antenna pattern, radiation wavelength, pulse repetition period and cloud characteristics. Give correlations used for calculations, allowing analysis of the effect of ground clutter for correct evaluation of the risk of clouds in weather on-board radar.