Indoor flight testing video of collision avoidance system developed for a quadrotor UAV using low-cost infrared and ultrasonic range sensors and Arduino Mega board. Pixhawk flight controller is used for attitude stabilization and altitude hold flight. DOWNLOAD LINKS TO PUBLICATIONS ARE BELOW:
https://www.researchgate.net/publication/284724052_RELATIVE_POSITION-BASED_COLLISION_AVOIDANCE_SYSTEM_FOR_SWARMING_UAVS_USING_MULTI-SENSOR_FUSION
https://www.researchgate.net/publication/283497390_Multi-sensor_fusion_based_UAV_collision_avoidance_system