Abstract—When an aircraft flies at a high altitude, it is not influenced by the terrain surface below on its parameters and sighting (underlying) surface conditions. However, when flying at low altitude, the conditions of the terrain below significantly affect the aerodynamic parameters of the aircraft. The parameters related to the flying environment include temperature, pressure, and wind status. When the parameters change, it will affect the aircraft control algorithm. The paper considers a methodology for studying the underlying surface’s influence on low-flying aircraft control algorithms. The method allows the study of the influence of the underlying surface on control algorithms for low-flying aircraft based on defining Digital Terrain Maps (DTM) and Maps of Real Components (MRC) libraries available. Simultaneously, an example of the algorithm was carried out to estimate the methodical error of the baro-inertial channel due to a change in the isobar along the flight path.

Keywords—low-flying aircraft, digital terrain maps, maps of real components, digital complex mathematical, baro-inertial

Cite: Vuong Anh Trung, "A Method for Studying the Influence of the Underlying Surface on the Control Algorithms for Low-Flying Aircraft," International Journal of Mechanical Engineering and Robotics Research, Vol. 13, No. 6, pp. 573-577, 2024.

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