SIMULATION OF DYNAMIC FLIGHT ALTITUDE CHANGE FOR RADAR ALTIMETER

Abstract

The article addresses the issue of low altitudes radar altimeters. The topic is focused on the possibility of simulation and measurement of low altitudes in small enclosed laboratories or in rugged terrain. It works via the evaluation of the dynamic change of the altitude by the adequate dynamic change of the distance. In the article the method is described, which can truly reproduce the change of the altitude in static, but also in dynamic behaviour and thus makes it possible to eliminate the influence of parasitic reflections of transmitted electromagnetic energy from the surrounding environment and also from the ground. By using this method we do not have to execute the flight measurements. Besides the significant economic saves it also creates the space for the realisation of ongoing research in the improvement of the accuracy of low altitudes measurements by the radar altimeters.