SADCHENKO, Andrey; KUSHNIRENKO, Oleg. QPSK-Modulation Modem Invariant to the Rotation of the Signal Constellation Plane. Electrical, Control and Communication Engineering, Riga, Latvia, v. 14, n. 2, p. 149–156, 2018. DOI: 10.2478/ecce-2018-0018. Disponível em: https://ecce-journals.rtu.lv/ecce/article/view/ecce-2018-0018.. Acesso em: 5 nov. 2024.