Ivanov, Ivan, and Mario Angelov. “DESIGN AND IMPLEMENTATION OF SOFTWARE-DEFINED PI 4-DQPSK MODEM WITH RECEIVE ANTENNA DIVERSITY”. ENVIRONMENT. TECHNOLOGIES. RESOURCES. Proceedings of the International Scientific and Practical Conference 3 (June 22, 2024): 101–104. Accessed July 3, 2024. https://journals.rta.lv/index.php/ETR/article/view/8108.