ALDAIR, Ammar A. FPGA Based Modified Fuzzy PID Controller for Pitch Angle of Bench-top Helicopter. Iraqi Journal for Electrical and Electronic Engineering, [S. l.], v. 8, n. 1, p. 12–24, 2012. DOI: 10.37917/ijeee.8.1.2. Disponível em: https://ijeee.edu.iq/ijeee/article/view/60. Acesso em: 8 dec. 2025.