AUTOMATIC COLLISION AVOIDANCE SYSTEM ON UCAV

• Main Author: Faris Shahab, Ahmad
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/70759
• Institution: Institut Teknologi Bandung

Airborne collision avoidance has been used by numerous aircraft as a collision alert and manual pilot commands. This research focuses on developing a collisionavoidance system that will focus on a non-cooperative approach, where only one of the aircraft performs the avoidance while the other interferes. The aircraft and the collision avoidance algorithm modeling are carried out using MATLAB and Simulink, with aircraft motion simulated in real-time. In this research, the UCAV model is a fighter-type aircraft that is modeled using a series of data to form a linearized model. The initial linearized data tend to be unstable; hence the stability is ensured to comply with the standard. Three autopilot modules involved: the bank hold, the heading hold, and the collision avoidance algorithm, with gains tuned using PID block. Two collision cases are modeled: slow-paced statics obstacle avoidance and then extended to the dynamic obstacle a fast-paced to simulate aircraft before it collides. Collision points are determined using the sense-detectavoid principle with the predicted collision point determined by a velocity ratio and a triangular geometry. The non-cooperative aircraft collision avoidance system has been simulated and able to avoid an obstacle, with different collision scenarios, namely the slower parallel aircraft, at the perpendicular, acute angle, and obtuse angle. The aircraft performing shall avoid the interfering airborne objects at very fast-paced, to show that the algorithm passed the design.