Optimization of the Surface Formation Algorithm by the Airborne Helicopter Radar

Abstract

The main advantages of helicopters include the ability to reduce the altitude and flight speed, hovering in the air, unscheduled landing and low sensitivity to weather conditions. These advantages over airplanes make it possible to use helicopters for a variety of tasks. At the same time, there remains an unresolved problem of helicopter landing on unequipped sites with unknown terrain in poor weather conditions, low visibility, at night and in smoke-filled areas. To solve this problem, a theoretical study of the optimal algorithm for the formation of the surface relief by an airborne helicopter radar was carried out. The obtained analytical expressions are analyzed and the structural diagram of the airborne sum-and-difference system for measuring the range and angular position of scattered radar pulses is proposed. The obtained results are confirmed by simulation modeling.