Design and Simulation of Terrain Matching Aided Navigation System for UAVs
Wang Hong-lu · Electronics Optics & Control · 2014
According to the mission requirements of UAVs,a terrain matching aided navigation system adaptable for UAV use is proposed. The system combines TERCOM algorithm with SITAN algorithm to meet the continuous matching requirement of UAVs in the case of its maneuvering. To verify the effectiveness of the system,a closed-loop simulation platform consisting of digital plane,flight control system,inertial navigation system and terrain matching system is established based on real terrain data. The impact of different flight conditions on navigation accuracy is studied. The simulation results illustrates that this system can improve the accuracy of the UAV autonomous navigation effectively and has a high practical application value.