Construction of a Spatial Stealthy Trajectory of the Aircraft in the Detection Zone of the Onboard Doppler Radar

The hidden trajectories of the movement of an air object in the detection zone of an air-based radar operating in pulse-Doppler mode for detection of low-flying air objects against the underlying surface background are considered. The subject of the article is the spatial trajectories of the stealthy movement of an air object. It is proposed to form spatial trajectories by matching the hidden trajectories in the horizontal plane and the traditional programs of the aircraft movement in the vertical plane. A system of equations is found, the solutions of which are the speed and duration of cruising flight, ensuring the coordinated movement of the aircraft in the vertical and horizontal planes. An iterative method for solving a system of equations is proposed.